619114 - produce console warning when an attempt is made to load a resource cross-origin but it fails

Status: RESOLVED DUPLICATE of bug 494130

(Core :: Layout: Text and Fonts, defect)

Description

[Robert O'Callahan (:roc) (email my personal email if necessary)]

Attachment: testcase

If you load the attached testcase, the font load starts but we don't use the font because it's from another origin. No message is reported in the Web Console to explain why the font wasn't used. There should be one.

Comment 1

[Jonathan Kew [:jfkthame]]

Do you mean the Error Console?

Comment 2

[:Gavin Sharp [email: [e-mail]]]

It should report to both (Error Console will be disabled before we ship, but  both consoles display most of these types of warnings). Doing this optimally may depend on one of the patches in bug 606498.

Comment 3

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

(And other errors that cause us not to load the font would ideally also print something on the console.)

Comment 4

[John Daggett (:jtd)]

Bug 494130 was originally logged to do this.

Comment 5

[Jonathan Kew [:jfkthame]]

Closing this as a dup of bug 494130. I've posted a patch there to introduce some basic console messages.