1979026 - Setting default locale with JS_SetDefaultLocale doesn't affect newly created cross-origin iframes

Status: RESOLVED DUPLICATE of bug 1980211

(Core :: Internationalization, defect)

Description

[Alexandra Borovova [:Sasha]]

While working on WebDriver BiDi command "emulation.setLocaleOverride" which is supposed to set a locale override and uses JS_SetDefaultLocale API to achieve this, we've noticed that newly created cross-origin iframes will not inherit the overriden default locale. It works fine for same-origin iframes. In the scope of the bug 1978533 we introduced a workaround in WebDriver BiDi layer to reapply the locale override when a cross-origin iframe is created, which works fine, but still it would be preferable to handle this solely on platform side, if possible.

Comment 1

[Alexandra Borovova [:Sasha]]

Dan or André, do you maybe have an idea of what could be an issue here?

Comment 2

[André Bargull [:anba]]

JS_SetDefaultLocale applies the default runtime locale for a single JSRuntime. It does neither affect the parent runtime nor any new child runtimes (or any other unrelated runtimes from different processes). Maybe that's the issue here?

Comment 3

[Dan Minor [:dminor]]

If there's a workaround, and this is intended for automation / testing code, I don't think we'd change the behaviour on the platform side.

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:m_kato, could you have a look please?

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Comment 5

[Alexandra Borovova [:Sasha]]

Will be fixed in the scope of the bug 1980211.