1921008 - Add Trusted Types pre-navigation check WPT for form-submission

Status: NEW

(Core :: DOM: Security, task)

Comment 1

[Mirko Brodesser (:mbrodesser-Igalia), offline until 8th of October]

Attachment: WIP: Bug 1921008: part 1) Factor duplicated code from <navigation-support.html> and <navigation-report-only-support.html> out

The factored out code will be extended in the next part.

Comment 2

[Mirko Brodesser (:mbrodesser-Igalia), offline until 8th of October]

Attachment: WIP: Bug 1921008: part 2) Add assertions to <trusted-types-navigation.html>

Before, the sub-tests passed without any assertions, hampering checking
whether the tests were indeed correct.

Depends on D223593

Comment 3

[Mirko Brodesser (:mbrodesser-Igalia), offline until 8th of October]

Attachment: WIP: Bug 1921008: part 3) Remove event listener when desired event was received in <trusted-types-navigation.html>

Previously, the event listeners of a previous test run would stay,
contributing to the set of assertions of the current test run.

Depends on D223594

Comment 4

[Mirko Brodesser (:mbrodesser-Igalia), offline until 8th of October]

Attachment: WIP: Bug 1921008: part 6) Start adding javascript-url navigation via form-submission tests for Trusted Types

Depends on D223595

Comment 5

[Mirko Brodesser (:mbrodesser-Igalia), offline until 8th of October]

Attachment: WIP: Bug 1921008: part 4) Remove checking `trusted-types` as effective directive in <trusted-types-navigation.html>

It was confusing.

Depends on D223595

Comment 6

[Mirko Brodesser (:mbrodesser-Igalia), offline until 8th of October]

Attachment: WIP: Bug 1921008: part 5) Correct click-loop-breaking mechanism in <trusted-types-navigation.html>

Before, <navigation-support.html> didn't correctly break the loop, as it
didn't use hashes.

Depends on D223753