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Replace TrustedURL with calling a default policy on navigation to javascript: URLs. #204

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merged 5 commits into from
Sep 4, 2019

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@koto koto commented Aug 6, 2019

This removes the burden from all authors to create types when interacting with common sinks that usually don't cause DOM XSS (unless for javascript: URLs).

This PR prevents javascript: URLs from working by default, and allows programmatic opt-in to enable them one-by-onefor the few applications that need them.

Related to #176.
Partially addresses #169.
Fixes #64.

@koto koto force-pushed the jshook branch 2 times, most recently from 38fb44d to 9a4d801 Compare August 8, 2019 17:24
@koto koto mentioned this pull request Aug 8, 2019
nreid260 pushed a commit to google/closure-library that referenced this pull request Aug 21, 2019
… as they will soon be removed from the Trusted Types API - w3c/trusted-types#204.

goog.createTrustedTypesPolicy will attempt to create a default policy allowing any value to be converted to TrustedURL.

RELNOTES: Trusted Types integrations will allow any value to be a TrustedURL via defensively creating a 'default' policy (to prepare for TrustedURL deprecation)

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=264626714
@koto koto mentioned this pull request Aug 29, 2019
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shicks pushed a commit to google/closure-library that referenced this pull request Aug 30, 2019
*** Reason for rollback ***

This breaks instances in report-only Trusted-Types enforcement, where non-TrustedURL types are passed to the sinks.

w3c/trusted-types#209

*** Original change description ***

Make Closure Trusted Types integration not require TrustedURL values, as they will soon be removed from the Trusted Types API - w3c/trusted-types#204.

goog.createTrustedTypesPolicy will attempt to create a default policy allowing any value to be converted to TrustedURL.

RELNOTES: Trusted Types integrations will allow any value to be a TrustedURL via defensively creating a 'default' policy (to prepare for TrustedURL deprecation)

***

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=265699886
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LGTM % two nits and a question.

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@koto koto marked this pull request as ready for review September 4, 2019 13:26
@koto koto merged commit d14d694 into w3c:master Sep 4, 2019
@koto koto deleted the jshook branch September 4, 2019 13:31
kjin pushed a commit to google/closure-library that referenced this pull request Oct 16, 2019
Trusted Types are about to remove TrustedURL. See w3c/trusted-types#204.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=273756987
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Bypass via HTMLAnchorElement properties
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