diff --git a/api/HTMLMediaElement.json b/api/HTMLMediaElement.json
index 0558942f8f16e9..556a9129b402f4 100644
--- a/api/HTMLMediaElement.json
+++ b/api/HTMLMediaElement.json
@@ -2348,91 +2348,46 @@
           }
         }
       },
-      "onmozinterruptbegin": {
+      "onerror": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/onmozinterruptbegin",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/onerror",
+          "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onerror",
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": true
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": true
             },
             "edge": {
-              "version_added": false
+              "version_added": "12"
             },
             "firefox": {
-              "version_added": true,
-              "version_removed": "55"
+              "version_added": "3.5"
             },
             "firefox_android": {
-              "version_added": true,
-              "version_removed": "55"
+              "version_added": "4"
             },
             "ie": {
-              "version_added": false
+              "version_added": "9"
             },
             "opera": {
-              "version_added": false
-            },
-            "safari": {
-              "version_added": false
-            },
-            "safari_ios": {
-              "version_added": false
-            },
-            "samsunginternet_android": {
-              "version_added": false
-            },
-            "webview_android": {
-              "version_added": false
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "onmozinterruptend": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/onmozinterruptend",
-          "support": {
-            "chrome": {
-              "version_added": false
-            },
-            "chrome_android": {
-              "version_added": false
-            },
-            "edge": {
-              "version_added": false
-            },
-            "firefox": {
-              "version_added": true,
-              "version_removed": "55"
-            },
-            "firefox_android": {
-              "version_added": true,
-              "version_removed": "55"
-            },
-            "ie": {
-              "version_added": false
+              "version_added": true
             },
-            "opera": {
-              "version_added": false
+            "opera_android": {
+              "version_added": true
             },
             "safari": {
-              "version_added": false
+              "version_added": "1.3"
             },
             "safari_ios": {
-              "version_added": false
+              "version_added": "1"
             },
             "samsunginternet_android": {
-              "version_added": false
+              "version_added": true
             },
             "webview_android": {
-              "version_added": false
+              "version_added": true
             }
           },
           "status": {