TrustedTypes - injection sync API ref #37952
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Content:WebAPI
hamishwillee
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Feb 4, 2025
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| In Edge only, calling `document.write()` more than once in an {{HTMLElement("iframe")}} causes the error "SCRIPT70: Permission denied". | ||
| We use the {{domxref("Window.trustedTypes")}} to access the global {{domxref("TrustedTypePolicyFactory")}}, and call its {{domxref("TrustedTypePolicyFactory/createPolicy","createPolicy()")}} method to define the sanitize function used for creating {{domxref("TrustedHTML")}} objects from text. |
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Below here is stuff I am going to inject into the example.
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Preview URLs Flaws (1)URL:
External URLs (2)URL:
(comment last updated: 2025-02-07 06:38:16) |
hamishwillee
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Feb 4, 2025
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| Using `document.write()` in [deferred](/en-US/docs/Web/HTML/Element/script#defer) or [asynchronous](/en-US/docs/Web/HTML/Element/script#async) scripts will be ignored and you'll get a message like "A call to `document.write()` from an asynchronously-loaded external script was ignored" in the error console. | ||
| Starting with version 55, Chrome will not execute `<script>` elements injected via `document.write()` when specific conditions are met. For more information, refer to [Intervening against document.write()](https://developer.chrome.com/blog/removing-document-write/). |
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This comes from old version. I have not verified it, but I expect it still to be true.
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This is update of injection sinks reference docs for TrustedTypes. I'm doing it for an FF release, so might not capture all of it.
Dependent (links to stuff added by #37917)
Draft, because I'm still working out an appropriate level of docs in ref vs cross linking to the overviews.
Related docs work in #37518