Contact emailsvogelh...@chromium.org

Specificationhttps://w3c.github.io/trusted-types/dist/spec/#trusted-html

Summary

Add a function to each "Trusted Type" to create an instance from a
JavaScript template literal (but not from a dynamically computed string).
This makes it easy to mark literals in the JavaScript source text as
"trusted". Example:

const html = TrustedHTML.fromLiteral`<p>Literal Text</p>`;

Blink componentBlink>SecurityFeature>TrustedTypes
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ESecurityFeature%3ETrustedTypes>

TAG reviewn/a

TAG review statusNot applicable

Risks

Interoperability and Compatibility


*Gecko*: No signal. (Gecko has not implemented Trusted Types.)

*WebKit*: No signal. (WebKit has not implemented Trusted Types.)

*Web developers*: Positive (https://github.com/w3c/trusted-types/issues/347)

*Other signals*:

WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that
it has potentially high risk for Android WebView-based applications? No.



Debuggability

It's a new method. Its use can be readily debugged in DevTools.


Will this feature be supported on all six Blink platforms (Windows, Mac,
Linux, Chrome OS, Android, and Android WebView)?Yes

Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
?Yes

Flag nameTrustedTypesFromLiteral

Requires code in //chrome?False

Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1271149

Estimated milestones

108


Anticipated spec changes

Open questions about a feature may be a source of future web compat or
interop issues. Please list open issues (e.g. links to known github issues
in the project for the feature specification) whose resolution may
introduce web compat/interop risk (e.g., changing to naming or structure of
the API in a non-backward-compatible way).


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/6551852775112704

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