1722448 - Implement self.reportError()

Status: RESOLVED FIXED

(Core :: DOM: Core & HTML, enhancement)

Description

[Anne (:annevk)]

This allows libraries to emulate the behavior of throwing exceptions in an event listener (triggers self.onerror).

HTML change: https://github.com/whatwg/html/pull/1196.

Tests: https://github.com/web-platform-tests/wpt/pull/29738.

Comment 1

[Tom S. (please needinfo tschuster)]

I am going investigate this soon.

Comment 2

[Tom S. (please needinfo tschuster)]

Attachment: Bug 1722448 - Implement self.reportError(). r?emilio

This is mostly just copying and adjusting code from AutoJSAPI::ReportException.
For nsGlobalWindowInner::ReportError, we might need to move this to outer, but I am not sure when that is actually required.
I also wasn't sure how we want to do the isChrome check.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/31f0b3f997a4
Implement self.reportError(). r=emilio,smaug

Comment 4

[Iulian Moraru]

https://hg.mozilla.org/mozilla-central/rev/31f0b3f997a4

Comment 5

[Hamish Willee]

Hi
FYI docs work for this can be tracked in https://github.com/mdn/content/issues/8608.
I'm still working on how/where to document because global things are a bit spread out. As a starting point though I have created https://github.com/mdn/content/pull/9314 (reportError() global function) and would welcome feedback.