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Ff145 Trusted Types follow on #28350

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f406dea
FF145 Worker url param TrustedScriptURL
hamishwillee Nov 2, 2025
fc6c563
FF145 SharedWorker url param TrustedScriptURL
hamishwillee Nov 2, 2025
3b27347
FF145 Document.execCommand insertHTML requires TrustedHTML
hamishwillee Nov 3, 2025
a236380
Element.setAttribute() and setAttributeNS() require TT
hamishwillee Nov 3, 2025
2d2318b
Function() constructor requires TrustedScript
hamishwillee Nov 3, 2025
c6d0be4
Document.execcommand fix chrome
hamishwillee Nov 3, 2025
891e92e
Fix sharedworker
hamishwillee Nov 3, 2025
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83 changes: 83 additions & 0 deletions api/Document.json
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Original file line number Diff line number Diff line change
Expand Up @@ -3523,6 +3523,89 @@
"deprecated": true
}
}
},
"insertHTML": {
"__compat": {
"description": "`insertHTML` command",
"support": {
"chrome": {
"version_added": "1"
},
"chrome_android": "mirror",
"edge": {
"version_added": "12"
},
"firefox": [
{
"version_added": "69",
"notes": [
"From Firefox 82, nested calls are not supported (return `false`). See [bug 1634262](https://bugzil.la/1634262).",
"Before Firefox 89, manipulating the content of `<input>` and `<textarea>` elements using `Document.execCommand()` commands requires workarounds (see [bug 1220696](https://bugzil.la/1220696))."
]
},
{
"version_added": "1",
"version_removed": "69",
"partial_implementation": true,
"notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
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@caugner caugner Nov 4, 2025

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Is there a bug that captures generalizing the implementation for all Document objects?

}
],
"firefox_android": "mirror",
"ie": {
"version_added": "4"
},
"oculus": "mirror",
"opera": {
"version_added": "9"
},
"opera_android": {
"version_added": "10.1"
},
"safari": {
"version_added": "1.3"
},
"safari_ios": "mirror",
"samsunginternet_android": "mirror",
"webview_android": "mirror",
"webview_ios": "mirror"
},
"status": {
"experimental": false,
"standard_track": false,
"deprecated": true
Comment on lines +3574 to +3575
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@caugner caugner Nov 4, 2025

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Isn't this standard track? (And if yes, what spec URL could we set?)

Suggested change
"standard_track": false,
"deprecated": true
"standard_track": true,
"deprecated": false

}
},
"enforces_trusted_types": {
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@hamishwillee hamishwillee Nov 3, 2025

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  1. Note, in this case of insertHTML I have created insertHTML feature first and then nested this enforces_trusted_types
    • My reasoning is that this only affects insertHTML and there are a lot of other options. We could instead put this as same level as the parent feature if you prefer and in description: insertHTML() requires ...
  2. Tested on browserstack using https://wpt.live/trusted-types/block-Document-execCommand.html

"__compat": {
"description": "Requires `TrustedHTML` instance when trusted types are enforced",
"support": {
"chrome": {
"version_added": "96"
},
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": "preview"
},
"firefox_android": "mirror",
"oculus": "mirror",
"opera": "mirror",
"opera_android": "mirror",
"safari": {
"version_added": "26"
},
"safari_ios": "mirror",
"samsunginternet_android": "mirror",
"webview_android": "mirror",
"webview_ios": "mirror"
},
"status": {
"experimental": false,
"standard_track": false,
"deprecated": true
Comment on lines +3604 to +3605
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@caugner caugner Nov 4, 2025

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Is this really deprecated? Should it not be:

Suggested change
"standard_track": false,
"deprecated": true
"standard_track": true,
"deprecated": false

}
}
}
}
},
"exitFullscreen": {
Expand Down
62 changes: 62 additions & 0 deletions api/Element.json
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Original file line number Diff line number Diff line change
Expand Up @@ -10073,6 +10073,37 @@
"standard_track": true,
"deprecated": false
}
},
"enforces_trusted_types": {
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@hamishwillee hamishwillee Nov 3, 2025

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Versions tested using https://wpt.live/trusted-types/block-string-assignment-to-Element-setAttribute.html

The description is overly long. If you follow the spec https://wpt.live/trusted-types/block-string-assignment-to-Element-setAttributeNS.html you see that https://w3c.github.io/trusted-types/dist/spec/#get-trusted-type-data-for-attribute%E2%91%A0 which shows that this applies to

Element	Attribute namespace	Attribute local name	TrustedType	Sink
HTMLIFrameElement	null	"srcdoc"	TrustedHTML	"HTMLIFrameElement srcdoc"
HTMLScriptElement	null	"src"	TrustedScriptURL	"HTMLScriptElement src"
SVGScriptElement	null	"href"	TrustedScriptURL	"SVGScriptElement href"
SVGScriptElement	XLink namespace	"href"	TrustedScriptURL	"SVGScriptElement href"

For the NS case I tried a different description

"value parameter requires TrustedHTML, TrustedScript, or TrustedScriptURL instance when trusted types enforced (matching attribute type)",

What I'm trying to do is find a shorter string that captures "the TT enforced if setting attribute directly on the equivalent property would be enforced".

"__compat": {
"description": "When trusted types are enforced `value` parameter requires `TrustedHTML` instance for `iframe.srcdoc` and `TrustedScriptURL` for HTML `script.src` and SVG `script.href`",
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@caugner caugner Nov 4, 2025

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Suggested change
"description": "When trusted types are enforced `value` parameter requires `TrustedHTML` instance for `iframe.srcdoc` and `TrustedScriptURL` for HTML `script.src` and SVG `script.href`",
"description": "Requires `value` parameter to be `TrustedHTML` instance (for `iframe.srcdoc`), or `TrustedScriptURL` (for HTML `script.src`, and SVG `script.href`) when trusted types are enforced",

"support": {
"chrome": {
"version_added": "83"
},
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": "preview"
},
"firefox_android": "mirror",
"oculus": "mirror",
"opera": "mirror",
"opera_android": "mirror",
"safari": {
"version_added": "26"
},
"safari_ios": "mirror",
"samsunginternet_android": "mirror",
"webview_android": "mirror",
"webview_ios": "mirror"
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": true
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@caugner caugner Nov 4, 2025

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Same:

Suggested change
"deprecated": true
"deprecated": false

}
}
}
},
"setAttributeNode": {
Expand Down Expand Up @@ -10207,6 +10238,37 @@
"standard_track": true,
"deprecated": false
}
},
"enforces_trusted_types": {
"__compat": {
"description": "`value` parameter requires `TrustedHTML`, `TrustedScript`, or `TrustedScriptURL` instance when trusted types enforced (matching attribute type)",
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@hamishwillee hamishwillee Nov 3, 2025

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Testing using https://wpt.live/trusted-types/block-string-assignment-to-Element-setAttributeNS.html

Note that while the spec seems to point to the same place as the non NS version ( See https://github.com/mdn/browser-compat-data/pull/28350/files#r2485142295 ) the test is different. This might therefore be wrong. I'm asking in https://bugzilla.mozilla.org/show_bug.cgi?id=1992941#c10

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Suggested change
"description": "`value` parameter requires `TrustedHTML`, `TrustedScript`, or `TrustedScriptURL` instance when trusted types enforced (matching attribute type)",
"description": "Requires `value` parameter to be `TrustedHTML`, `TrustedScript`, or `TrustedScriptURL` instance when trusted types enforced (matching attribute type)",

"support": {
"chrome": {
"version_added": "83"
},
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": "preview"
},
"firefox_android": "mirror",
"oculus": "mirror",
"opera": "mirror",
"opera_android": "mirror",
"safari": {
"version_added": "26"
},
"safari_ios": "mirror",
"samsunginternet_android": "mirror",
"webview_android": "mirror",
"webview_ios": "mirror"
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": true
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Suggested change
"deprecated": true

}
}
}
},
"setCapture": {
Expand Down
39 changes: 39 additions & 0 deletions api/SharedWorker.json
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Original file line number Diff line number Diff line change
Expand Up @@ -162,6 +162,45 @@
}
}
},
"enforces_trusted_types": {
"__compat": {
"description": "`url` parameter requires `TrustedScriptURL` instance when trusted types are enforced",
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@hamishwillee hamishwillee Nov 3, 2025

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Tested with https://wpt.live/trusted-types/DedicatedWorker-constructor-from-DedicatedWorker.html - yes, I know this is dedicated worker, I'm assuming they are the same

"support": {
"chrome": {
"version_added": "97"
},
"chrome_android": {
"version_added": false
},
"deno": {
"version_added": false
},
"edge": "mirror",
"firefox": {
"version_added": "preview"
},
"firefox_android": "mirror",
"nodejs": {
"version_added": false
},
"oculus": "mirror",
"opera": "mirror",
"opera_android": "mirror",
"safari": {
"version_added": "26"
},
"safari_ios": "mirror",
"samsunginternet_android": "mirror",
"webview_android": "mirror",
"webview_ios": "mirror"
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"mime_checks": {
"__compat": {
"description": "Strict MIME type checks for shared worker scripts",
Expand Down
37 changes: 37 additions & 0 deletions api/Worker.json
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Original file line number Diff line number Diff line change
Expand Up @@ -163,6 +163,43 @@
}
}
},
"enforces_trusted_types": {
"__compat": {
"description": "`url` parameter requires `TrustedScriptURL` instance when trusted types are enforced",
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@hamishwillee hamishwillee Nov 3, 2025

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Tested with https://wpt.live/trusted-types/DedicatedWorker-constructor-from-DedicatedWorker.html

Note, I didn't nest this as a property of an URL sub feature. WOuld you prefer that? Ditto for the SharedWorker

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Suggested change
"description": "`url` parameter requires `TrustedScriptURL` instance when trusted types are enforced",
"description": "Requires `url` parameter to be `TrustedScriptURL` instance when trusted types are enforced",

"support": {
"chrome": {
"version_added": "97"
},
"chrome_android": "mirror",
"deno": {
"version_added": false
},
"edge": "mirror",
"firefox": {
"version_added": "preview"
},
"firefox_android": "mirror",
"nodejs": {
"version_added": false
},
"oculus": "mirror",
"opera": "mirror",
"opera_android": "mirror",
"safari": {
"version_added": "26"
},
"safari_ios": "mirror",
"samsunginternet_android": "mirror",
"webview_android": "mirror",
"webview_ios": "mirror"
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"mime_checks": {
"__compat": {
"description": "Strict MIME type checks for worker scripts",
Expand Down
32 changes: 32 additions & 0 deletions javascript/builtins/Function.json
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Original file line number Diff line number Diff line change
Expand Up @@ -107,6 +107,38 @@
"standard_track": true,
"deprecated": false
}
},
"enforces_trusted_types": {
"__compat": {
"description": "Arguments require `TrustedScript` instance when trusted types are enforced",
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@hamishwillee hamishwillee Nov 3, 2025

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Tested with https://wpt.live/trusted-types/eval-function-constructor-untrusted-arguments-and-applying-default-policy.html

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@caugner caugner Nov 4, 2025

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Suggested change
"description": "Arguments require `TrustedScript` instance when trusted types are enforced",
"description": "Requires arguments to be `TrustedScript` instance when trusted types are enforced",

"spec_url": "https://w3c.github.io/trusted-types/dist/spec/#dom-htmlscriptelement-innertext",
"support": {
"chrome": {
"version_added": false
},
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": "preview"
},
"firefox_android": "mirror",
"oculus": "mirror",
"opera": "mirror",
"opera_android": "mirror",
"safari": {
"version_added": "26"
},
"safari_ios": "mirror",
"samsunginternet_android": "mirror",
"webview_android": "mirror",
"webview_ios": "mirror"
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
}
},
"apply": {
Expand Down