diff --git a/BUILD.bazel b/BUILD.bazel
index d222cc31a8..a5d2904247 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -91,7 +91,6 @@ npm_package(
         "//third_party/github.com/bazelbuild/bazel-skylib:package_contents",
         "//third_party/github.com/buffer-from:package_contents",
         "//third_party/github.com/gjtorikian/isBinaryFile:package_contents",
-        "//third_party/github.com/inikulin/parse5:package_contents",
         "//third_party/github.com/juanjoDiaz/removeNPMAbsolutePaths:package_contents",
         "//third_party/github.com/source-map:package_contents",
         "//third_party/github.com/source-map-support:package_contents",
diff --git a/e2e/BUILD.bazel b/e2e/BUILD.bazel
index 9dc8278a70..272b4ebff4 100644
--- a/e2e/BUILD.bazel
+++ b/e2e/BUILD.bazel
@@ -83,6 +83,7 @@ e2e_integration_test(
     name = "e2e_ts_devserver",
     npm_packages = {
         "//packages/hide-bazel-files:npm_package": "@bazel/hide-bazel-files",
+        "//packages/inject-html:npm_package": "@bazel/inject-html",
         "//packages/protractor:npm_package": "@bazel/protractor",
         "//packages/typescript:npm_package": "@bazel/typescript",
     },
diff --git a/e2e/ts_devserver/package.json b/e2e/ts_devserver/package.json
index bd66da7690..6a06eedc60 100644
--- a/e2e/ts_devserver/package.json
+++ b/e2e/ts_devserver/package.json
@@ -1,6 +1,7 @@
 {
   "dependencies": {
     "@bazel/hide-bazel-files": "^0.40.0",
+    "@bazel/inject-html": "^0.40.0",
     "@bazel/protractor": "^0.40.0",
     "@bazel/typescript": "^0.40.0",
     "@types/jasmine": "2.8.2",
diff --git a/e2e/ts_devserver/subpackage/BUILD.bazel b/e2e/ts_devserver/subpackage/BUILD.bazel
index fb5798db54..9095a6bc10 100644
--- a/e2e/ts_devserver/subpackage/BUILD.bazel
+++ b/e2e/ts_devserver/subpackage/BUILD.bazel
@@ -12,13 +12,22 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+load("@npm_bazel_inject_html//:index.bzl", "inject_html")
 load("@npm_bazel_protractor//:index.bzl", "protractor_web_test_suite")
 load("@npm_bazel_typescript//:index.bzl", "ts_devserver", "ts_library")
 
+inject_html(
+    name = "inject",
+    src = "index.html",
+    assets = ["//:red-body-style.css"],
+)
+
 ts_devserver(
     name = "devserver",
-    index_html = "index.html",
-    static_files = ["//:red-body-style.css"],
+    static_files = [
+        "inject",
+        "//:red-body-style.css",
+    ],
 )
 
 ts_library(
diff --git a/examples/BUILD.bazel b/examples/BUILD.bazel
index 112887bb71..ad6d2fdc87 100644
--- a/examples/BUILD.bazel
+++ b/examples/BUILD.bazel
@@ -18,6 +18,7 @@ example_integration_test(
     name = "examples_angular",
     timeout = "long",
     npm_packages = {
+        "//packages/inject-html:npm_package": "@bazel/inject-html",
         "//packages/karma:npm_package": "@bazel/karma",
         "//packages/protractor:npm_package": "@bazel/protractor",
         "//packages/rollup:npm_package": "@bazel/rollup",
@@ -51,6 +52,7 @@ example_integration_test(
     name = "examples_angular_view_engine",
     timeout = "long",
     npm_packages = {
+        "//packages/inject-html:npm_package": "@bazel/inject-html",
         "//packages/karma:npm_package": "@bazel/karma",
         "//packages/protractor:npm_package": "@bazel/protractor",
         "//packages/rollup:npm_package": "@bazel/rollup",
@@ -90,6 +92,7 @@ example_integration_test(
     name = "examples_app",
     npm_packages = {
         "//packages/hide-bazel-files:npm_package": "@bazel/hide-bazel-files",
+        "//packages/inject-html:npm_package": "@bazel/inject-html",
         "//packages/protractor:npm_package": "@bazel/protractor",
         "//packages/rollup:npm_package": "@bazel/rollup",
         "//packages/terser:npm_package": "@bazel/terser",
@@ -115,6 +118,7 @@ example_integration_test(
 example_integration_test(
     name = "examples_kotlin",
     npm_packages = {
+        "//packages/inject-html:npm_package": "@bazel/inject-html",
         "//packages/jasmine:npm_package": "@bazel/jasmine",
         "//packages/rollup:npm_package": "@bazel/rollup",
         "//packages/terser:npm_package": "@bazel/terser",
diff --git a/examples/angular/package.json b/examples/angular/package.json
index f2f695da8f..ecf251abb6 100644
--- a/examples/angular/package.json
+++ b/examples/angular/package.json
@@ -36,6 +36,7 @@
         "@bazel/benchmark-runner": "^0.1.0",
         "@bazel/buildifier": "^0.29.0",
         "@bazel/ibazel": "^0.10.3",
+        "@bazel/inject-html": "^0.40.0",
         "@bazel/karma": "^0.40.0",
         "@bazel/protractor": "^0.40.0",
         "@bazel/rollup": "^0.40.0",
diff --git a/examples/angular/src/BUILD.bazel b/examples/angular/src/BUILD.bazel
index 64fe9e9b9f..0a24cecca4 100644
--- a/examples/angular/src/BUILD.bazel
+++ b/examples/angular/src/BUILD.bazel
@@ -5,6 +5,7 @@ load("@io_bazel_rules_sass//:defs.bzl", "sass_binary")
 load("@npm//@babel/cli:index.bzl", "babel")
 load("@npm//history-server:index.bzl", "history_server")
 load("@npm_angular_bazel//:index.bzl", "ng_module")
+load("@npm_bazel_inject_html//:index.bzl", "inject_html")
 load("@npm_bazel_rollup//:index.bzl", "rollup_bundle")
 load("@npm_bazel_terser//:index.bzl", "terser_minified")
 load("@npm_bazel_typescript//:index.bzl", "ts_config", "ts_devserver", "ts_library")
@@ -85,23 +86,22 @@ _ASSETS = [
     "@npm//:node_modules/zone.js/dist/zone.min.js",
 ]
 
+inject_html(
+    name = "inject_scripts_for_dev",
+    src = "//src:example/index.html",
+    assets = _ASSETS + ["_/ts_scripts.js"],
+)
+
 # This devserver is written in Go and is super-fast.
 # It doesn't run any bundler or code splitter. Instead, it concatenates
 # named UMD and named AMD JavaScript code on-the-fly in-memory.
 # This scales really well for massive codebases.
 ts_devserver(
     name = "devserver",
-    # Serve these files but don't inject tags for them into the index file
-    # This might be because we only want to lazy-load these scripts on-demand,
-    # or because they aren't compatible with Require.js so we must use a runtime
-    # loader to load them.
-    data = [
-        "//src/assets",
-    ],
-    # Start from the development version of the main
+    # Serve src/example/index.html at /index.html
+    additional_root_paths = ["src/example"],
+    # Run the program from the development version of the main
     entry_module = "examples_angular/src/main.dev",
-    # <script> and <link> tags will be automatically injected into this index file
-    index_html = "//src/example:index.dev.html",
     # These scripts will be included in the JS bundle after require.js
     # They should have only named UMD modules, or require.js will throw.
     scripts = [
@@ -114,8 +114,10 @@ ts_devserver(
         "@npm//date-fns:date-fns.umd.js",
     ],
     # Serve these files in addition to the JavaScript bundle
-    # The corresponding <script> or <link> tags will be injected into the index_html
-    static_files = _ASSETS,
+    static_files = _ASSETS + [
+        ":inject_scripts_for_dev",
+        "//src/assets",
+    ],
     # Tell Bazel to build the sources first
     deps = ["//src"],
 )
@@ -161,6 +163,15 @@ terser_minified(
     src = ":bundle-es5",
 )
 
+inject_html(
+    name = "inject_scripts_for_prod",
+    src = "//src:example/index.prod.html",
+    # we can't produce "example/index.html" since that collides with the devmode file
+    # web_package rule will re-root this path because it starts with _prodapp
+    out = "_prodapp/src/example/index.html",
+    assets = _ASSETS,
+)
+
 web_package(
     name = "prodapp",
     # In production mode we serve some polyfills with script tags that have hard-coded paths in the index.html
@@ -168,21 +179,24 @@ web_package(
     additional_root_paths = [
         "npm/node_modules/core-js/client",
         "npm/node_modules/systemjs/dist",
+        "src/_prodapp",
     ],
-    # do not sort
     assets = _ASSETS + [
         ":bundle-es2015.min",
         ":bundle-es5.min",
-    ],
-    data = [
+        ":inject_scripts_for_prod",
         "//src/assets",
         # Include polyfills that will be requested by old browsers
         "@npm//:node_modules/systemjs/dist/system.js",
         "@npm//:node_modules/core-js/client/core.min.js",
         "index.html",
     ],
-    # <script> and <link> tags will be automatically injected into this index.
-    index_html = "//src/example:index.html",
+    # In production mode we serve some polyfills with script tags that have hard-coded paths in the index.html
+    # so we must serve them at that path, by stripping a prefix
+    additional_root_paths = [
+        "npm/node_modules/core-js/client",
+        "npm/node_modules/systemjs/dist",
+    ],
 )
 
 history_server(
diff --git a/examples/angular/src/example/BUILD.bazel b/examples/angular/src/example/BUILD.bazel
deleted file mode 100644
index 6a49869dbd..0000000000
--- a/examples/angular/src/example/BUILD.bazel
+++ /dev/null
@@ -1,6 +0,0 @@
-package(default_visibility = ["//:__subpackages__"])
-
-exports_files([
-    "index.html",
-    "index.dev.html",
-])
diff --git a/examples/angular/src/example/index.dev.html b/examples/angular/src/example/index.dev.html
deleted file mode 100644
index c3265881bd..0000000000
--- a/examples/angular/src/example/index.dev.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!doctype html>
-
-<html>
-  <head>
-    <title>Angular Bazel Example</title>
-    <base href="/example">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
-  </head>
-  <body>
-    <!-- The Angular application will be bootstrapped into this element. -->
-    <app-component></app-component>
-  </body>
-</html>
diff --git a/examples/angular/src/example/index.html b/examples/angular/src/example/index.html
index eed875619a..a5b3482b91 100644
--- a/examples/angular/src/example/index.html
+++ b/examples/angular/src/example/index.html
@@ -9,15 +9,6 @@
   </head>
   <body>
     <!-- The Angular application will be bootstrapped into this element. -->
-    <app-component></app-component>
-
-    <!-- in browsers that don't support ESModules, we polyfill with system.js-->
-    <script nomodule src="/core.min.js"></script>
-    <script nomodule src="/system.js"></script>
-
-    <!-- TODO: figure out how diff. loading interacts with 
-    https://www.npmjs.com/package/rollup-plugin-bundle-html -->
-    <script type="module" src="/bundle-es2015.min/index.js"></script>
-    <script nomodule="" src="/bundle-es5.min/index.js"></script>     
+    <app-component></app-component>    
   </body>
 </html>
diff --git a/examples/angular/src/example/index.prod.html b/examples/angular/src/example/index.prod.html
new file mode 100644
index 0000000000..eed875619a
--- /dev/null
+++ b/examples/angular/src/example/index.prod.html
@@ -0,0 +1,23 @@
+<!doctype html>
+
+<html>
+  <head>
+    <title>Angular Bazel Example</title>
+    <base href="/example">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
+  </head>
+  <body>
+    <!-- The Angular application will be bootstrapped into this element. -->
+    <app-component></app-component>
+
+    <!-- in browsers that don't support ESModules, we polyfill with system.js-->
+    <script nomodule src="/core.min.js"></script>
+    <script nomodule src="/system.js"></script>
+
+    <!-- TODO: figure out how diff. loading interacts with 
+    https://www.npmjs.com/package/rollup-plugin-bundle-html -->
+    <script type="module" src="/bundle-es2015.min/index.js"></script>
+    <script nomodule="" src="/bundle-es5.min/index.js"></script>     
+  </body>
+</html>
diff --git a/examples/angular_view_engine/package.json b/examples/angular_view_engine/package.json
index 3a3d3ab164..923d47605c 100644
--- a/examples/angular_view_engine/package.json
+++ b/examples/angular_view_engine/package.json
@@ -36,6 +36,7 @@
         "@bazel/benchmark-runner": "^0.1.0",
         "@bazel/buildifier": "^0.29.0",
         "@bazel/ibazel": "^0.10.3",
+        "@bazel/inject-html": "^0.40.0",
         "@bazel/karma": "^0.40.0",
         "@bazel/protractor": "^0.40.0",
         "@bazel/rollup": "^0.40.0",
diff --git a/examples/angular_view_engine/src/BUILD.bazel b/examples/angular_view_engine/src/BUILD.bazel
index edfd13b1fa..2da9bfb427 100644
--- a/examples/angular_view_engine/src/BUILD.bazel
+++ b/examples/angular_view_engine/src/BUILD.bazel
@@ -3,6 +3,7 @@ load("@io_bazel_rules_sass//:defs.bzl", "sass_binary")
 load("@npm//@babel/cli:index.bzl", "babel")
 load("@npm//history-server:index.bzl", "history_server")
 load("@npm_angular_bazel//:index.bzl", "ng_module")
+load("@npm_bazel_inject_html//:index.bzl", "inject_html")
 load("@npm_bazel_rollup//:index.bzl", "rollup_bundle")
 load("@npm_bazel_terser//:index.bzl", "terser_minified")
 load("@npm_bazel_typescript//:index.bzl", "ts_config", "ts_devserver", "ts_library")
@@ -83,23 +84,22 @@ _ASSETS = [
     "@npm//:node_modules/zone.js/dist/zone.min.js",
 ]
 
+inject_html(
+    name = "inject_scripts_for_dev",
+    src = "//src:example/index.html",
+    assets = _ASSETS + ["_/ts_scripts.js"],
+)
+
 # This devserver is written in Go and is super-fast.
 # It doesn't run any bundler or code splitter. Instead, it concatenates
 # named UMD and named AMD JavaScript code on-the-fly in-memory.
 # This scales really well for massive codebases.
 ts_devserver(
     name = "devserver",
-    # Serve these files but don't inject tags for them into the index file
-    # This might be because we only want to lazy-load these scripts on-demand,
-    # or because they aren't compatible with Require.js so we must use a runtime
-    # loader to load them.
-    data = [
-        "//src/assets",
-    ],
-    # Start from the development version of the main
+    # Serve src/example/index.html at /index.html
+    additional_root_paths = ["src/example"],
+    # Run the program from the development version of the main
     entry_module = "examples_angular_view_engine/src/main.dev",
-    # <script> and <link> tags will be automatically injected into this index file
-    index_html = "//src/example:index.dev.html",
     # These scripts will be included in the JS bundle after require.js
     # They should have only named UMD modules, or require.js will throw.
     scripts = [
@@ -112,8 +112,10 @@ ts_devserver(
         "@npm//date-fns:date-fns.umd.js",
     ],
     # Serve these files in addition to the JavaScript bundle
-    # The corresponding <script> or <link> tags will be injected into the index_html
-    static_files = _ASSETS,
+    static_files = _ASSETS + [
+        ":inject_scripts_for_dev",
+        "//src/assets",
+    ],
     # Tell Bazel to build the sources first
     deps = ["//src"],
 )
@@ -161,28 +163,33 @@ terser_minified(
     src = ":bundle-es5",
 )
 
+inject_html(
+    name = "inject_scripts_for_prod",
+    src = "//src:example/index.prod.html",
+    # we can't produce "example/index.html" since that collides with the devmode file
+    # web_package rule will re-root this path because it starts with _prodapp
+    out = "_prodapp/src/example/index.html",
+    assets = _ASSETS,
+)
+
 web_package(
     name = "prodapp",
-    # In production mode we serve some polyfills with script tags that have hard-coded paths in the index.html
-    # so we must serve them at that path, by stripping a prefix
-    additional_root_paths = [
-        "npm/node_modules/core-js/client",
-        "npm/node_modules/systemjs/dist",
-    ],
-    # do not sort
-    assets = _ASSETS + [
+    srcs = _ASSETS + [
         ":bundle-es2015.min",
         ":bundle-es5.min",
-    ],
-    data = [
+        ":inject_scripts_for_prod",
         "//src/assets",
         # Include polyfills that will be requested by old browsers
         "@npm//:node_modules/systemjs/dist/system.js",
         "@npm//:node_modules/core-js/client/core.min.js",
         "index.html",
     ],
-    # <script> and <link> tags will be automatically injected into this index.
-    index_html = "//src/example:index.html",
+    # In production mode we serve some polyfills with script tags that have hard-coded paths in the index.html
+    # so we must serve them at that path, by stripping a prefix
+    additional_root_paths = [
+        "npm/node_modules/core-js/client",
+        "npm/node_modules/systemjs/dist",
+    ],
 )
 
 history_server(
diff --git a/examples/angular_view_engine/src/example/BUILD.bazel b/examples/angular_view_engine/src/example/BUILD.bazel
deleted file mode 100644
index 6a49869dbd..0000000000
--- a/examples/angular_view_engine/src/example/BUILD.bazel
+++ /dev/null
@@ -1,6 +0,0 @@
-package(default_visibility = ["//:__subpackages__"])
-
-exports_files([
-    "index.html",
-    "index.dev.html",
-])
diff --git a/examples/angular_view_engine/src/example/index.dev.html b/examples/angular_view_engine/src/example/index.dev.html
deleted file mode 100644
index c3265881bd..0000000000
--- a/examples/angular_view_engine/src/example/index.dev.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!doctype html>
-
-<html>
-  <head>
-    <title>Angular Bazel Example</title>
-    <base href="/example">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
-  </head>
-  <body>
-    <!-- The Angular application will be bootstrapped into this element. -->
-    <app-component></app-component>
-  </body>
-</html>
diff --git a/examples/angular_view_engine/src/example/index.html b/examples/angular_view_engine/src/example/index.html
index eed875619a..a5b3482b91 100644
--- a/examples/angular_view_engine/src/example/index.html
+++ b/examples/angular_view_engine/src/example/index.html
@@ -9,15 +9,6 @@
   </head>
   <body>
     <!-- The Angular application will be bootstrapped into this element. -->
-    <app-component></app-component>
-
-    <!-- in browsers that don't support ESModules, we polyfill with system.js-->
-    <script nomodule src="/core.min.js"></script>
-    <script nomodule src="/system.js"></script>
-
-    <!-- TODO: figure out how diff. loading interacts with 
-    https://www.npmjs.com/package/rollup-plugin-bundle-html -->
-    <script type="module" src="/bundle-es2015.min/index.js"></script>
-    <script nomodule="" src="/bundle-es5.min/index.js"></script>     
+    <app-component></app-component>    
   </body>
 </html>
diff --git a/examples/angular_view_engine/src/example/index.prod.html b/examples/angular_view_engine/src/example/index.prod.html
new file mode 100644
index 0000000000..eed875619a
--- /dev/null
+++ b/examples/angular_view_engine/src/example/index.prod.html
@@ -0,0 +1,23 @@
+<!doctype html>
+
+<html>
+  <head>
+    <title>Angular Bazel Example</title>
+    <base href="/example">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
+  </head>
+  <body>
+    <!-- The Angular application will be bootstrapped into this element. -->
+    <app-component></app-component>
+
+    <!-- in browsers that don't support ESModules, we polyfill with system.js-->
+    <script nomodule src="/core.min.js"></script>
+    <script nomodule src="/system.js"></script>
+
+    <!-- TODO: figure out how diff. loading interacts with 
+    https://www.npmjs.com/package/rollup-plugin-bundle-html -->
+    <script type="module" src="/bundle-es2015.min/index.js"></script>
+    <script nomodule="" src="/bundle-es5.min/index.js"></script>     
+  </body>
+</html>
diff --git a/examples/app/BUILD.bazel b/examples/app/BUILD.bazel
index 01a23c6675..31b9c1b964 100644
--- a/examples/app/BUILD.bazel
+++ b/examples/app/BUILD.bazel
@@ -1,6 +1,7 @@
 load("@build_bazel_rules_nodejs//internal/web_package:web_package.bzl", "web_package")
 load("@npm//http-server:index.bzl", "http_server")
 load("@npm//typescript:index.bzl", "tsc")
+load("@npm_bazel_inject_html//:index.bzl", "inject_html")
 load("@npm_bazel_protractor//:index.bzl", "protractor_web_test_suite")
 load("@npm_bazel_rollup//:index.bzl", "rollup_bundle")
 load("@npm_bazel_terser//:index.bzl", "terser_minified")
@@ -15,7 +16,6 @@ ts_library(
 
 ts_devserver(
     name = "devserver",
-    index_html = "index.html",
     # We'll collect all the devmode JS sources from these TypeScript libraries
     deps = [":app"],
 )
@@ -31,14 +31,21 @@ terser_minified(
     src = ":bundle",
 )
 
+_ASSETS = [
+    ":bundle.min",
+    "//styles:base.css",
+    "//styles:test.css",
+]
+
+inject_html(
+    name = "inject_js_css_tags",
+    src = "index.html",
+    assets = _ASSETS,
+)
+
 web_package(
     name = "package",
-    assets = [
-        ":bundle.min",
-        "//styles:base.css",
-        "//styles:test.css",
-    ],
-    index_html = "index.html",
+    srcs = [":inject_js_css_tags"] + _ASSETS,
 )
 
 http_server(
diff --git a/examples/app/index.html b/examples/app/index.html
index c2c0d055ed..f222da46ad 100644
--- a/examples/app/index.html
+++ b/examples/app/index.html
@@ -7,7 +7,7 @@
 -->
 <html>
   <head>
-    <title>ts_devserver example</title>
+    <title>app example</title>
   </head>
   <body>
   </body>
diff --git a/examples/app/package.json b/examples/app/package.json
index 44b744a17a..3b0c141233 100644
--- a/examples/app/package.json
+++ b/examples/app/package.json
@@ -1,6 +1,7 @@
 {
   "devDependencies": {
     "@bazel/hide-bazel-files": "^0.40.0",
+    "@bazel/inject-html": "^0.40.0",
     "@bazel/protractor": "^0.40.0",
     "@bazel/rollup": "^0.40.0",
     "@bazel/terser": "^0.40.0",
diff --git a/examples/kotlin/BUILD.bazel b/examples/kotlin/BUILD.bazel
index 277daa3f5a..e199249cde 100644
--- a/examples/kotlin/BUILD.bazel
+++ b/examples/kotlin/BUILD.bazel
@@ -4,6 +4,7 @@
 load("@build_bazel_rules_nodejs//internal/web_package:web_package.bzl", "web_package")
 load("@io_bazel_rules_kotlin//kotlin:kotlin.bzl", "kt_js_import", "kt_js_library")
 load("@npm//http-server:index.bzl", "http_server")
+load("@npm_bazel_inject_html//:index.bzl", "inject_html")
 load("@npm_bazel_jasmine//:index.bzl", "jasmine_node_test")
 load("@npm_bazel_rollup//:index.bzl", "rollup_bundle")
 load("@npm_bazel_terser//:index.bzl", "terser_minified")
@@ -48,14 +49,24 @@ rollup_bundle(
 )
 
 terser_minified(
+    # This will output bundle.min.js
     name = "bundle.min",
     src = ":bundle",
 )
 
+inject_html(
+    name = "inject_script_tag",
+    src = "index.html",
+    # Having a .js file here causes the injector to add a script tag
+    assets = [":bundle.min.js"],
+)
+
 web_package(
     name = "package",
-    data = [":bundle.min"],
-    index_html = "index.html",
+    srcs = [
+        "inject_script_tag",
+        ":bundle.min",
+    ],
 )
 
 # TODO: fix prodserver; require.js is needed if rollup_bundle output is cjs
diff --git a/examples/kotlin/package.json b/examples/kotlin/package.json
index 5e04d49064..965796d8e5 100644
--- a/examples/kotlin/package.json
+++ b/examples/kotlin/package.json
@@ -2,6 +2,7 @@
     "name": "kotlin_example",
     "private": true,
     "devDependencies": {
+        "@bazel/inject-html": "^0.40.0",
         "@bazel/jasmine": "^0.40.0",
         "@bazel/rollup": "^0.40.0",
         "@bazel/terser": "^0.40.0",
diff --git a/examples/kotlin/spec.js b/examples/kotlin/spec.js
index 06694d39cb..75728a4bbc 100644
--- a/examples/kotlin/spec.js
+++ b/examples/kotlin/spec.js
@@ -10,6 +10,10 @@ describe('kotlin webapp', () => {
     // Make all Domino types available as types in the global env.
     Object.assign(global, domino.impl);
 
-import(path.join(__dirname, 'bundle/bundle.js')).then(() => {expect(global.document.body.textContent).toEqual('Hello from Kotlin!')});
+    // clang-format off
+    // (it doesn't understand dynamic import)
+    import(path.join(__dirname, 'bundle/bundle.js')).then(() => {
+      expect(global.document.body.textContent).toEqual('Hello from Kotlin!');
+    });
   });
 });
diff --git a/examples/webapp/differential_loading.bzl b/examples/webapp/differential_loading.bzl
index e3d449be0f..47414f106a 100644
--- a/examples/webapp/differential_loading.bzl
+++ b/examples/webapp/differential_loading.bzl
@@ -57,6 +57,7 @@ def differential_loading(name, entry_point, srcs):
     web_package(
         name = name,
         assets = [
+            "index.html",
             "styles.css",
         ],
         data = [
@@ -64,5 +65,4 @@ def differential_loading(name, entry_point, srcs):
             name + "_chunks.min",
             name + "_chunks_es5.min",
         ],
-        index_html = "index.html",
     )
diff --git a/examples/webapp/index.html b/examples/webapp/index.html
index 13c02b5faa..f300cf9fbc 100644
--- a/examples/webapp/index.html
+++ b/examples/webapp/index.html
@@ -2,7 +2,6 @@
     <head>
         <title>rules_nodejs webapp example</title>
         <link rel="icon" href="/favicon.png">
-        <!-- CSS will be linked here from web_package#assets -->
     </head>
     <!-- TODO: figure out how diff. loading interacts with 
          https://www.npmjs.com/package/rollup-plugin-bundle-html -->
diff --git a/internal/web_package/BUILD.bazel b/internal/web_package/BUILD.bazel
index 9b4201be66..0ac1f26279 100644
--- a/internal/web_package/BUILD.bazel
+++ b/internal/web_package/BUILD.bazel
@@ -7,10 +7,7 @@ load("@npm_bazel_jasmine//:index.from_src.bzl", "jasmine_node_test")
 # END-INTERNAL
 package(default_visibility = ["//visibility:public"])
 
-exports_files([
-    "web_package.bzl",
-    "inject_html.bzl",
-])
+exports_files(["web_package.bzl"])
 
 bzl_library(
     name = "bzl",
@@ -30,26 +27,7 @@ nodejs_binary(
     node_modules = ":node_modules_none",
 )
 
-nodejs_binary(
-    name = "injector",
-    data = [
-        "injector.js",
-        "//third_party/github.com/inikulin/parse5",
-    ],
-    entry_point = ":injector.js",
-    install_source_map_support = False,
-)
-
 # BEGIN-INTERNAL
-jasmine_node_test(
-    name = "injector_test",
-    srcs = ["injector_spec.js"],
-    deps = [
-        ":injector.js",
-        "//third_party/github.com/inikulin/parse5",
-    ],
-)
-
 jasmine_node_test(
     name = "assembler_test",
     srcs = ["assembler_spec.js"],
diff --git a/internal/web_package/test/BUILD.bazel b/internal/web_package/test/BUILD.bazel
index 999e50cac4..118a1785bc 100644
--- a/internal/web_package/test/BUILD.bazel
+++ b/internal/web_package/test/BUILD.bazel
@@ -67,7 +67,10 @@ web_package(
     # Intentionally duplicating `:bundle.min` (`bundle.min.js`) in assets
     # and data to test for regression of the issues fixed by
     # https://github.com/bazelbuild/rules_nodejs/pull/546
-    assets = [":bundle.min"],
+    assets = [
+        "index.html",
+        ":bundle.min",
+    ],
     data = [
         ":bundle",
         ":bundle.es2015",
@@ -76,7 +79,6 @@ web_package(
         ":bundle.min_debug",
         ":bundle.min_debug.es2015",
     ],
-    index_html = "index.html",
 )
 
 jasmine_node_test(
diff --git a/internal/web_package/test/index_golden.html_ b/internal/web_package/test/index_golden.html_
index ccc6280c66..18ecdcb795 100644
--- a/internal/web_package/test/index_golden.html_
+++ b/internal/web_package/test/index_golden.html_
@@ -1,2 +1 @@
-<html><head></head><body>
-<script src="/bundle.min.js?v=123"></script></body></html>
\ No newline at end of file
+<html></html>
diff --git a/internal/web_package/test2/BUILD.bazel b/internal/web_package/test2/BUILD.bazel
index c5d4a2a805..43706b077b 100644
--- a/internal/web_package/test2/BUILD.bazel
+++ b/internal/web_package/test2/BUILD.bazel
@@ -62,6 +62,7 @@ EXTS = [
 web_package(
     name = "pkg",
     assets = [
+                 "index.html",
                  # bundles from a different directory
                  "//internal/web_package/test:bundle.es2015",
                  "//internal/web_package/test:bundle.min.es2015",
@@ -85,7 +86,6 @@ web_package(
              ["//internal/web_package/test2/rel-exports:rel-bin-" + e for e in EXTS] +
              ["//internal/web_package/test2/rel-exports:rel-gen-" + e for e in EXTS] +
              ["//internal/web_package/test2/rel-exports:rel-file." + e for e in EXTS],
-    index_html = "index.html",
 )
 
 jasmine_node_test(
diff --git a/internal/web_package/test2/index_golden.html_ b/internal/web_package/test2/index_golden.html_
index 8f37f927a0..18ecdcb795 100644
--- a/internal/web_package/test2/index_golden.html_
+++ b/internal/web_package/test2/index_golden.html_
@@ -1,2 +1 @@
-<html><head><link rel="stylesheet" href="/internal/web_package/test-exports/bin.css?v=123"><link rel="stylesheet" href="/internal/web_package/test-exports/gen.css?v=123"><link rel="stylesheet" href="/internal/web_package/test-exports/file.css?v=123"><link rel="stylesheet" href="/rel-exports/rel-bin.css?v=123"><link rel="stylesheet" href="/rel-exports/rel-gen.css?v=123"><link rel="stylesheet" href="/rel-exports/rel-file.css?v=123"></head><body>
-<script type="module" src="/internal/web_package/test/bundle.es2015.js?v=123"></script><script type="module" src="/internal/web_package/test/bundle.min.es2015.js?v=123"></script><script type="module" src="/internal/web_package/test/bundle.min_debug.es2015.js?v=123"></script><script nomodule="" src="/internal/web_package/test/bundle.js?v=123"></script><script nomodule="" src="/internal/web_package/test/bundle.min.js?v=123"></script><script nomodule="" src="/internal/web_package/test/bundle.min_debug.js?v=123"></script><script type="module" src="/local_bundle.es2015.js?v=123"></script><script type="module" src="/local_bundle.min.es2015.js?v=123"></script><script type="module" src="/local_bundle.min_debug.es2015.js?v=123"></script><script nomodule="" src="/local_bundle.js?v=123"></script><script nomodule="" src="/local_bundle.min.js?v=123"></script><script nomodule="" src="/local_bundle.min_debug.js?v=123"></script><script src="/internal/web_package/test-exports/bin.js?v=123"></script><script src="/internal/web_package/test-exports/gen.js?v=123"></script><script src="/internal/web_package/test-exports/file.js?v=123"></script><script src="/rel-exports/rel-bin.js?v=123"></script><script src="/rel-exports/rel-gen.js?v=123"></script><script src="/rel-exports/rel-file.js?v=123"></script></body></html>
+<html></html>
diff --git a/internal/web_package/web_package.bzl b/internal/web_package/web_package.bzl
index 599ef01b3a..ff089fbc1c 100644
--- a/internal/web_package/web_package.bzl
+++ b/internal/web_package/web_package.bzl
@@ -15,35 +15,6 @@
 """Contains the web_package rule.
 """
 
-def html_asset_inject(index_html, action_factory, injector, root_dirs, assets, output):
-    """Injects JS and CSS resources into the index.html.
-
-    Args:
-      index_html: The input html file
-      action_factory: Bazel's actions module from ctx.actions - see https://docs.bazel.build/versions/master/skylark/lib/actions.html
-      injector: The injector executable
-      root_dirs: Path prefixes to strip off all assets. Longest wins.
-      assets: Asset files to inject
-      output: The output html file
-
-    Returns:
-      The output html file
-    """
-    args = action_factory.args()
-    args.add(output.path)
-    args.add(index_html.path)
-    args.add_all(root_dirs)
-    args.add("--assets")
-    args.add_all(assets)
-    args.use_param_file("%s", use_always = True)
-    action_factory.run(
-        inputs = [index_html],
-        outputs = [output],
-        executable = injector,
-        arguments = [args],
-    )
-    return output
-
 def move_files(output_name, files, action_factory, assembler, root_paths):
     """Moves files into an output directory
 
@@ -91,21 +62,9 @@ def additional_root_paths(ctx):
 def _web_package(ctx):
     root_paths = additional_root_paths(ctx)
 
-    # Create the output file in a re-rooted subdirectory so it doesn't collide with the input file
-    html = ctx.actions.declare_file("_%s/%s" % (ctx.label.name, ctx.file.index_html.path))
-
-    # Move that index file back into place inside the package
-    populated_index = html_asset_inject(
-        ctx.file.index_html,
-        ctx.actions,
-        ctx.executable._injector,
-        root_paths,
-        [f.path for f in ctx.files.assets],
-        html,
-    )
     package_layout = move_files(
         ctx.label.name,
-        ctx.files.data + ctx.files.assets + [html],
+        ctx.files.data + ctx.files.assets,
         ctx.actions,
         ctx.executable._assembler,
         root_paths,
@@ -128,20 +87,11 @@ web_package = rule(
             allow_files = True,
             doc = """Additional files which should be served on request""",
         ),
-        "index_html": attr.label(
-            allow_single_file = True,
-            doc = """The entry point of the application""",
-        ),
         "_assembler": attr.label(
             default = "@build_bazel_rules_nodejs//internal/web_package:assembler",
             executable = True,
             cfg = "host",
         ),
-        "_injector": attr.label(
-            default = "@build_bazel_rules_nodejs//internal/web_package:injector",
-            executable = True,
-            cfg = "host",
-        ),
     },
     doc = """Assembles a web application from source files.
 
diff --git a/package.json b/package.json
index fe5e986b9a..a1f0d8d8b2 100644
--- a/package.json
+++ b/package.json
@@ -50,6 +50,7 @@
         "node_resolve_main": "file:./tools/npm_packages/node_resolve_main",
         "node_resolve_main_2": "file:./tools/npm_packages/node_resolve_main_2",
         "node_resolve_nested_main": "file:./tools/npm_packages/node_resolve_nested_main",
+        "parse5": "5.1.0",
         "protobufjs": "6.8.8",
         "protractor": "^5.4.2",
         "requirejs": "2.3.6",
diff --git a/packages/inject-html/BUILD.bazel b/packages/inject-html/BUILD.bazel
new file mode 100644
index 0000000000..1ab283aab3
--- /dev/null
+++ b/packages/inject-html/BUILD.bazel
@@ -0,0 +1,36 @@
+load("@build_bazel_rules_nodejs//:index.bzl", "nodejs_binary", "npm_package")
+load("@npm_bazel_jasmine//:index.from_src.bzl", "jasmine_node_test")
+
+# For local testing without an npm install
+nodejs_binary(
+    name = "injector",
+    data = ["@npm//parse5"],
+    entry_point = ":index.js",
+    install_source_map_support = False,
+    visibility = ["//packages/inject-html:__subpackages__"],
+)
+
+jasmine_node_test(
+    name = "test",
+    srcs = ["spec.js"],
+    deps = [
+        ":index.js",
+        "@npm//parse5",
+    ],
+)
+
+npm_package(
+    name = "npm_package",
+    srcs = [
+        "README.md",
+        "index.bzl",
+        "index.js",
+        "inject_html.bzl",
+        "package.json",
+    ],
+    # Don't distribute this package yet
+    # TODO: determine if this is a useful public API that we want to commit to
+    # after discussion with the team.
+    tags = ["do-not-publish"],
+    visibility = ["//:__subpackages__"],
+)
diff --git a/packages/inject-html/README.md b/packages/inject-html/README.md
new file mode 100644
index 0000000000..15717859ec
--- /dev/null
+++ b/packages/inject-html/README.md
@@ -0,0 +1,3 @@
+# @bazel/inject-html
+
+A utility for adding `<link>` and `<script>` tags to an HTML file.
diff --git a/packages/inject-html/index.bzl b/packages/inject-html/index.bzl
new file mode 100644
index 0000000000..240edad9cc
--- /dev/null
+++ b/packages/inject-html/index.bzl
@@ -0,0 +1,5 @@
+"public API surface"
+
+load("inject_html.bzl", _ih = "inject_html")
+
+inject_html = _ih
diff --git a/internal/web_package/injector.js b/packages/inject-html/index.js
similarity index 95%
rename from internal/web_package/injector.js
rename to packages/inject-html/index.js
index ab810b126a..428f0fd521 100644
--- a/internal/web_package/injector.js
+++ b/packages/inject-html/index.js
@@ -16,9 +16,8 @@
  */
 
 const parse5 = require('parse5');
-const treeAdapter = require('parse5/tree-adapters/default');
+const treeAdapter = require('parse5/lib/tree-adapters/default');
 const fs = require('fs');
-const path = require('path');
 
 function findElementByName(d, name) {
   if (treeAdapter.isTextNode(d)) return undefined;
@@ -67,10 +66,10 @@ function main(params, read = fs.readFileSync, write = fs.writeFileSync, timestam
    * Trims the longest prefix from the path
    */
   function relative(execPath) {
+    if (execPath.startsWith('external/')) {
+      execPath = execPath.substring('external/'.length);
+    }
     for (const r of rootDirs) {
-      if (execPath.startsWith('external/')) {
-        execPath = execPath.substring('external/'.length);
-      }
       if (execPath.startsWith(r)) {
         return execPath.substring(r.length);
       }
diff --git a/packages/inject-html/inject_html.bzl b/packages/inject-html/inject_html.bzl
new file mode 100644
index 0000000000..686dd4b45a
--- /dev/null
+++ b/packages/inject-html/inject_html.bzl
@@ -0,0 +1,87 @@
+"Inject script and link tags into html files"
+
+load("@build_bazel_rules_nodejs//internal/web_package:web_package.bzl", "additional_root_paths")
+
+_DOC = """Inject script and link tags into html file
+
+The file in `src` is copied to the output directory with the same filename,
+but the contents are modified such that any `.js` files in the `assets` are
+referenced with a `script` tag, and any `.css` files are referenced with a `link` tag.
+"""
+
+_ATTRS = {
+    "src": attr.label(doc = "html file", allow_single_file = [".html"]),
+    "out": attr.output(
+        doc = "Path to write the output. If not provided, src will be copied to the same path in the output tree",
+    ),
+    "additional_root_paths": attr.string_list(
+        doc = """Path prefixes to strip off all assets, in addition to the current package. Longest wins.""",
+    ),
+    "assets": attr.label_list(
+        allow_files = True,
+        doc = """Files which should be referenced from the index_html""",
+    ),
+    "injector": attr.label(
+        default = "@npm//@bazel/inject-html/bin:injector",
+        executable = True,
+        cfg = "host",
+    ),
+}
+
+def html_asset_inject(index_html, action_factory, injector, root_dirs, assets, output):
+    """Injects JS and CSS resources into the index.html.
+
+    Args:
+      index_html: The input html file
+      action_factory: Bazel's actions module from ctx.actions - see https://docs.bazel.build/versions/master/skylark/lib/actions.html
+      injector: The injector executable
+      root_dirs: Path prefixes to strip off all assets. Longest wins.
+      assets: Asset files to inject
+      output: The output html file
+
+    Returns:
+      The output html file
+    """
+    args = action_factory.args()
+    args.add(output.path)
+    args.add(index_html.path)
+    args.add_all(root_dirs)
+    args.add("--assets")
+    args.add_all(assets)
+    args.use_param_file("%s", use_always = True)
+    action_factory.run(
+        inputs = [index_html],
+        outputs = [output],
+        executable = injector,
+        arguments = [args],
+    )
+    return output
+
+def _impl(ctx):
+    src = ctx.file.src
+
+    if ctx.outputs.out:
+        out = ctx.outputs.out
+    else:
+        # Unusual: we declare an output at the same path as the input
+        # foo/index.html -> bazel-bin/foo/index.html
+        out = ctx.actions.declare_file(src.basename, sibling = src)
+
+    html_asset_inject(
+        src,
+        ctx.actions,
+        ctx.executable.injector,
+        additional_root_paths(ctx),
+        [f.path for f in ctx.files.assets],
+        out,
+    )
+
+    return [
+        DefaultInfo(files = depset([out])),
+    ]
+
+inject_html = rule(
+    doc = _DOC,
+    attrs = _ATTRS,
+    implementation = _impl,
+)
diff --git a/packages/inject-html/package.json b/packages/inject-html/package.json
new file mode 100644
index 0000000000..de639aea04
--- /dev/null
+++ b/packages/inject-html/package.json
@@ -0,0 +1,16 @@
+{
+    "name": "@bazel/inject-html",
+    "version": "0.0.0-PLACEHOLDER",
+    "description": "Inject script and link tags in html",
+    "bin": {
+        "injector": "index.js"
+    },
+    "dependencies": {
+        "parse5": "5.1.0"
+    },
+    "bazelWorkspaces": {
+        "npm_bazel_inject_html": {
+            "rootPath": "."
+        }
+    }
+}
diff --git a/internal/web_package/injector_spec.js b/packages/inject-html/spec.js
similarity index 98%
rename from internal/web_package/injector_spec.js
rename to packages/inject-html/spec.js
index f6b5cff386..b1c501f9fe 100644
--- a/internal/web_package/injector_spec.js
+++ b/packages/inject-html/spec.js
@@ -1,4 +1,4 @@
-const injector = require('./injector');
+const injector = require('./');
 
 describe('HTML injector', () => {
   const inFile = 'some/index.html';
diff --git a/packages/inject-html/test/BUILD.bazel b/packages/inject-html/test/BUILD.bazel
new file mode 100644
index 0000000000..c8a271205e
--- /dev/null
+++ b/packages/inject-html/test/BUILD.bazel
@@ -0,0 +1,36 @@
+load("//internal/golden_file_test:golden_file_test.bzl", "golden_file_test")
+load("//packages/inject-html:inject_html.bzl", "inject_html")
+
+inject_html(
+    name = "inject",
+    src = "index.html",
+    assets = [
+        "file.css",
+        "script.js",
+    ],
+    injector = "//packages/inject-html:injector",
+)
+
+inject_html(
+    name = "named_out",
+    src = "index.html",
+    out = "named_index.html",
+    assets = ["file.css"],
+    injector = "//packages/inject-html:injector",
+)
+
+# make the input hermetic by replacing the cache-buster timestamp
+genrule(
+    name = "stable_timestamp",
+    srcs = ["inject"],
+    outs = ["inject_stable.html"],
+    cmd = "sed 's/\\?v=[0-9]\\+/?v=123/g' <$< >$@",
+)
+
+golden_file_test(
+    name = "test",
+    actual = "stable_timestamp",
+    golden = "index_golden.html_",
+    # Sed script doesn't work on Mac :shrug:
+    tags = ["no-bazelci-mac"],
+)
diff --git a/packages/inject-html/test/file.css b/packages/inject-html/test/file.css
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/packages/inject-html/test/index.html b/packages/inject-html/test/index.html
new file mode 100644
index 0000000000..6c70bcfe4d
--- /dev/null
+++ b/packages/inject-html/test/index.html
@@ -0,0 +1 @@
+<html></html>
\ No newline at end of file
diff --git a/packages/inject-html/test/index_golden.html_ b/packages/inject-html/test/index_golden.html_
new file mode 100644
index 0000000000..7491c2cfe3
--- /dev/null
+++ b/packages/inject-html/test/index_golden.html_
@@ -0,0 +1 @@
+<html><head><link rel="stylesheet" href="/file.css?v=123"></head><body><script src="/script.js?v=123"></script></body></html>
\ No newline at end of file
diff --git a/packages/inject-html/test/script.js b/packages/inject-html/test/script.js
new file mode 100644
index 0000000000..70e301760f
--- /dev/null
+++ b/packages/inject-html/test/script.js
@@ -0,0 +1,4 @@
+const el = document.createElement('div');
+const text = 'Hello, World';
+el.innerText = text;
+document.body.appendChild(el);
diff --git a/packages/inject-html/test/spec.js b/packages/inject-html/test/spec.js
new file mode 100644
index 0000000000..fc115a3a4a
--- /dev/null
+++ b/packages/inject-html/test/spec.js
@@ -0,0 +1,15 @@
+const fs = require('fs');
+const path = require('path');
+
+process.chdir(path.join(process.env['TEST_SRCDIR'], 'build_bazel_rules_nodejs'));
+console.error(fs.readdirSync('.'));
+describe('web_package', () => {
+  it('should match the golden file', () => {
+    const output = 'build_bazel_rules_nodejs/internal/web_package/test/pkg/index.html';
+    const golden = 'build_bazel_rules_nodejs/internal/web_package/test/index_golden.html_';
+    const actual = fs.readFileSync(require.resolve(output), {encoding: 'utf-8'});
+    const expected = fs.readFileSync(require.resolve(golden), {encoding: 'utf-8'});
+    // make the input hermetic by replacing the cache-buster timestamp
+    expect(actual.replace(/\?v=\d+/g, '?v=123')).toBe(expected);
+  });
+});
diff --git a/packages/typescript/src/internal/devserver/package.json b/packages/typescript/src/internal/devserver/package.json
deleted file mode 100644
index 5391d982e5..0000000000
--- a/packages/typescript/src/internal/devserver/package.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-    "description": "runtime dependencies for devserver",
-    "devDependencies": {
-        "requirejs": "2.3.5"
-    }
-}
diff --git a/packages/typescript/src/internal/devserver/ts_devserver.bzl b/packages/typescript/src/internal/devserver/ts_devserver.bzl
index e1d46440fd..97fdfe4401 100644
--- a/packages/typescript/src/internal/devserver/ts_devserver.bzl
+++ b/packages/typescript/src/internal/devserver/ts_devserver.bzl
@@ -19,11 +19,6 @@ load(
     "@build_bazel_rules_nodejs//internal/js_library:js_library.bzl",
     "write_amd_names_shim",
 )
-load(
-    "@build_bazel_rules_nodejs//internal/web_package:web_package.bzl",
-    "additional_root_paths",
-    "html_asset_inject",
-)
 
 # Avoid using non-normalized paths (workspace/../other_workspace/path)
 def _to_manifest_path(ctx, file):
@@ -100,21 +95,6 @@ def _ts_devserver(ctx):
     devserver_runfiles += script_files
     devserver_runfiles += ctx.files._bash_runfile_helpers
 
-    if ctx.file.index_html:
-        injected_index = ctx.actions.declare_file("index.html")
-        bundle_script = ctx.attr.serving_path
-        if bundle_script.startswith("/"):
-            bundle_script = bundle_script[1:]
-        html_asset_inject(
-            ctx.file.index_html,
-            ctx.actions,
-            ctx.executable._injector,
-            additional_root_paths(ctx),
-            [_to_manifest_path(ctx, f) for f in ctx.files.static_files] + [bundle_script],
-            injected_index,
-        )
-        devserver_runfiles += [injected_index]
-
     packages = depset(["/".join([workspace_name, ctx.label.package])] + ctx.attr.additional_root_paths)
 
     ctx.actions.expand_template(
@@ -173,12 +153,6 @@ ts_devserver = rule(
             `require(["entry_module"]);`
             """,
         ),
-        "index_html": attr.label(
-            allow_single_file = True,
-            doc = """An index.html file, we'll inject the script tag for the bundle,
-            as well as script tags for .js static_files and link tags for .css
-            static_files""",
-        ),
         "port": attr.int(
             doc = """The port that the devserver will listen on.""",
             default = 5432,
@@ -205,11 +179,6 @@ ts_devserver = rule(
             aspects = [node_modules_aspect],
         ),
         "_bash_runfile_helpers": attr.label(default = Label("@bazel_tools//tools/bash/runfiles")),
-        "_injector": attr.label(
-            default = "@build_bazel_rules_nodejs//internal/web_package:injector",
-            executable = True,
-            cfg = "host",
-        ),
         "_launcher_template": attr.label(allow_single_file = True, default = Label("//internal/devserver:launcher_template.sh")),
         "_requirejs_script": attr.label(allow_single_file = True, default = Label("//third_party/npm/requirejs:require.js")),
     },
diff --git a/packages/typescript/src/internal/devserver/yarn.lock b/packages/typescript/src/internal/devserver/yarn.lock
deleted file mode 100644
index 95ae199a6c..0000000000
--- a/packages/typescript/src/internal/devserver/yarn.lock
+++ /dev/null
@@ -1,7 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
-requirejs@2.3.5:
-  version "2.3.5"
-  resolved "https://registry.yarnpkg.com/requirejs/-/requirejs-2.3.5.tgz#617b9acbbcb336540ef4914d790323a8d4b861b0"
diff --git a/yarn.lock b/yarn.lock
index 18d68331de..029f39618d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5313,6 +5313,11 @@ parse-json@^4.0.0:
     error-ex "^1.3.1"
     json-parse-better-errors "^1.0.1"
 
+parse5@5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/parse5/-/parse5-5.1.0.tgz#c59341c9723f414c452975564c7c00a68d58acd2"
+  integrity sha512-fxNG2sQjHvlVAYmzBZS9YlDp6PTSSDwa98vkD4QgVDDCAo84z5X1t5XyJQ62ImdLXx5NdIIfihey6xpum9/gRQ==
+
 parse5@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-4.0.0.tgz#6d78656e3da8d78b4ec0b906f7c08ef1dfe3f608"