diff --git a/docs/GlobalAPI.md b/docs/GlobalAPI.md
index 6d40690337db..c4a545656d96 100644
--- a/docs/GlobalAPI.md
+++ b/docs/GlobalAPI.md
@@ -251,7 +251,7 @@ Use `describe.each` if you keep duplicating the same test suites with different
     - `%$` - Number of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - `fn`: `Function` the suite of tests to be run, this is the function that will receive the parameters in each row as function arguments.
@@ -305,7 +305,7 @@ describe.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test suite, use `$variable` to inject test data into the suite title from the tagged template expressions, and `$#` for the index of the row.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the suite of tests to be run, this is the function that will receive the test data object.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
@@ -574,7 +574,7 @@ test.concurrent.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test, use `$variable` to inject test data into the test title from the tagged template expressions.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the test to be run, this is the function that will receive the test data object, **this will have to be an asynchronous function**.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
@@ -697,7 +697,7 @@ Use `test.each` if you keep duplicating the same test with different data. `test
     - `%$` - Number of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - `fn`: `Function` the test to be run, this is the function that will receive the parameters in each row as function arguments.
@@ -731,7 +731,7 @@ test.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test, use `$variable` to inject test data into the test title from the tagged template expressions.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the test to be run, this is the function that will receive the test data object.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
diff --git a/packages/jest-each/README.md b/packages/jest-each/README.md
index fd4be0917eed..7120b720b36c 100644
--- a/packages/jest-each/README.md
+++ b/packages/jest-each/README.md
@@ -122,7 +122,7 @@ const each = require('jest-each').default;
     - `%$` - Number of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - testFn: `Function` the test logic, this is the function that will receive the parameters of each row as function arguments
@@ -149,7 +149,7 @@ const each = require('jest-each').default;
     - `%$` - Number of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - suiteFn: `Function` the suite of `test`/`it`s to be ran, this is the function that will receive the parameters in each row as function arguments
@@ -381,7 +381,7 @@ each`
 ##### `.test`:
 
 - name: `String` the title of the `test`, use `$variable` in the name string to inject test values into the test title from the tagged template expressions
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
   - You can use `$#` to inject the index of the table row.
 - testFn: `Function` the test logic, this is the function that will receive the parameters of each row as function arguments
 
@@ -418,7 +418,7 @@ each`
 ##### `.describe`:
 
 - name: `String` the title of the `test`, use `$variable` in the name string to inject test values into the test title from the tagged template expressions
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - suiteFn: `Function` the suite of `test`/`it`s to be ran, this is the function that will receive the parameters in each row as function arguments
 
 ### Usage
diff --git a/website/versioned_docs/version-29.4/GlobalAPI.md b/website/versioned_docs/version-29.4/GlobalAPI.md
index 2a04d4e352a3..3a8649531b52 100644
--- a/website/versioned_docs/version-29.4/GlobalAPI.md
+++ b/website/versioned_docs/version-29.4/GlobalAPI.md
@@ -250,7 +250,7 @@ Use `describe.each` if you keep duplicating the same test suites with different
     - `%#` - Index of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - `fn`: `Function` the suite of tests to be run, this is the function that will receive the parameters in each row as function arguments.
@@ -304,7 +304,7 @@ describe.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test suite, use `$variable` to inject test data into the suite title from the tagged template expressions, and `$#` for the index of the row.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the suite of tests to be run, this is the function that will receive the test data object.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
@@ -572,7 +572,7 @@ test.concurrent.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test, use `$variable` to inject test data into the test title from the tagged template expressions.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the test to be run, this is the function that will receive the test data object, **this will have to be an asynchronous function**.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
@@ -694,7 +694,7 @@ Use `test.each` if you keep duplicating the same test with different data. `test
     - `%#` - Index of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - `fn`: `Function` the test to be run, this is the function that will receive the parameters in each row as function arguments.
@@ -728,7 +728,7 @@ test.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test, use `$variable` to inject test data into the test title from the tagged template expressions.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the test to be run, this is the function that will receive the test data object.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
diff --git a/website/versioned_docs/version-29.5/GlobalAPI.md b/website/versioned_docs/version-29.5/GlobalAPI.md
index 2a04d4e352a3..3a8649531b52 100644
--- a/website/versioned_docs/version-29.5/GlobalAPI.md
+++ b/website/versioned_docs/version-29.5/GlobalAPI.md
@@ -250,7 +250,7 @@ Use `describe.each` if you keep duplicating the same test suites with different
     - `%#` - Index of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - `fn`: `Function` the suite of tests to be run, this is the function that will receive the parameters in each row as function arguments.
@@ -304,7 +304,7 @@ describe.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test suite, use `$variable` to inject test data into the suite title from the tagged template expressions, and `$#` for the index of the row.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the suite of tests to be run, this is the function that will receive the test data object.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
@@ -572,7 +572,7 @@ test.concurrent.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test, use `$variable` to inject test data into the test title from the tagged template expressions.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the test to be run, this is the function that will receive the test data object, **this will have to be an asynchronous function**.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
@@ -694,7 +694,7 @@ Use `test.each` if you keep duplicating the same test with different data. `test
     - `%#` - Index of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - `fn`: `Function` the test to be run, this is the function that will receive the parameters in each row as function arguments.
@@ -728,7 +728,7 @@ test.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test, use `$variable` to inject test data into the test title from the tagged template expressions.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the test to be run, this is the function that will receive the test data object.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
diff --git a/website/versioned_docs/version-29.6/GlobalAPI.md b/website/versioned_docs/version-29.6/GlobalAPI.md
index 2a04d4e352a3..3a8649531b52 100644
--- a/website/versioned_docs/version-29.6/GlobalAPI.md
+++ b/website/versioned_docs/version-29.6/GlobalAPI.md
@@ -250,7 +250,7 @@ Use `describe.each` if you keep duplicating the same test suites with different
     - `%#` - Index of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - `fn`: `Function` the suite of tests to be run, this is the function that will receive the parameters in each row as function arguments.
@@ -304,7 +304,7 @@ describe.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test suite, use `$variable` to inject test data into the suite title from the tagged template expressions, and `$#` for the index of the row.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the suite of tests to be run, this is the function that will receive the test data object.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
@@ -572,7 +572,7 @@ test.concurrent.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test, use `$variable` to inject test data into the test title from the tagged template expressions.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the test to be run, this is the function that will receive the test data object, **this will have to be an asynchronous function**.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
@@ -694,7 +694,7 @@ Use `test.each` if you keep duplicating the same test with different data. `test
     - `%#` - Index of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - `fn`: `Function` the test to be run, this is the function that will receive the parameters in each row as function arguments.
@@ -728,7 +728,7 @@ test.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test, use `$variable` to inject test data into the test title from the tagged template expressions.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the test to be run, this is the function that will receive the test data object.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
diff --git a/website/versioned_docs/version-29.7/GlobalAPI.md b/website/versioned_docs/version-29.7/GlobalAPI.md
index 2a04d4e352a3..c20c7acbf145 100644
--- a/website/versioned_docs/version-29.7/GlobalAPI.md
+++ b/website/versioned_docs/version-29.7/GlobalAPI.md
@@ -250,7 +250,7 @@ Use `describe.each` if you keep duplicating the same test suites with different
     - `%#` - Index of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work) (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - `fn`: `Function` the suite of tests to be run, this is the function that will receive the parameters in each row as function arguments.
@@ -304,7 +304,7 @@ describe.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test suite, use `$variable` to inject test data into the suite title from the tagged template expressions, and `$#` for the index of the row.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the suite of tests to be run, this is the function that will receive the test data object.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
@@ -572,7 +572,7 @@ test.concurrent.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test, use `$variable` to inject test data into the test title from the tagged template expressions.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the test to be run, this is the function that will receive the test data object, **this will have to be an asynchronous function**.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.
 
@@ -694,7 +694,7 @@ Use `test.each` if you keep duplicating the same test with different data. `test
     - `%#` - Index of the test case.
     - `%%` - single percent sign ('%'). This does not consume an argument.
   - Or generate unique test titles by injecting properties of test case object with `$variable`
-    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+    - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
     - You can use `$#` to inject the index of the test case
     - You cannot use `$variable` with the `printf` formatting except for `%%`
 - `fn`: `Function` the test to be run, this is the function that will receive the parameters in each row as function arguments.
@@ -728,7 +728,7 @@ test.each([
   - First row of variable name column headings separated with `|`
   - One or more subsequent rows of data supplied as template literal expressions using `${value}` syntax.
 - `name`: `String` the title of the test, use `$variable` to inject test data into the test title from the tagged template expressions.
-  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value`
+  - To inject nested object values use you can supply a keyPath i.e. `$variable.path.to.value` (only works for ["own" properites](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty), e.g. `$variable.constructor.name` wouldn't work)
 - `fn`: `Function` the test to be run, this is the function that will receive the test data object.
 - Optionally, you can provide a `timeout` (in milliseconds) for specifying how long to wait for each row before aborting. The default timeout is 5 seconds.