400 instances of "Couldn't convert chrome URL: chrome://foo/skin/icon.png" emitted from none during linux64 debug testing

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Firefox
General
2 years ago
2 years ago

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(Reporter: erahm, Unassigned)

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(Blocks: 1 bug)

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Details

> 408 Couldn't convert chrome URL: chrome://foo/skin/icon.png

This warning [1] shows up in the following test suites:

>    102 - test-linux64/debug-mochitest-browser-chrome-e10s-2 bc2
>    102 - test-linux64/debug-mochitest-browser-chrome-9 bc9
>    102 - test-linux64/debug-mochitest-browser-chrome-e10s-8 bc8
>    102 - test-linux64/debug-mochitest-browser-chrome-8 bc8

It shows up in 4 tests. A few of the most prevalent:

>    102 -        toolkit/mozapps/extensions/test/browser/test-window/browser_details.js
>    102 -        toolkit/mozapps/extensions/test/browser/browser_details.js
>    102 - [e10s] toolkit/mozapps/extensions/test/browser/browser_details.js
>    102 - [e10s] toolkit/mozapps/extensions/test/browser/test-window/browser_details.js

[1] https://hg.mozilla.org/mozilla-central/annotate/5a4412474c63/none#l0
The actual warning comes from nsChromeProtocolHandler::NewChannel2 [1], presumably caused by trying to load a file that is not registered. I suppose this could be a race, a packaging issue, or a straight up non-existent file.

It seems to be referenced in various add-on and extension tests [2].

[1] http://searchfox.org/mozilla-central/rev/30fcf167af036aeddf322de44a2fadd370acfd2f/chrome/nsChromeProtocolHandler.cpp#138-146
[2] http://searchfox.org/mozilla-central/search?q=chrome%3A%2F%2Ffoo%2Fskin%2Ficon.png&path=
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