614630 - various localstorage and sessionstorage tests cause lots of ASSERTION: XPConnect is being called on a scope without a 'Components' property

Status: RESOLVED WORKSFORME

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

Description

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

The tests:
dom/tests/mochitest/localstorage/test_localStorageQuota.html
dom/tests/mochitest/localstorage/test_localStorageQuotaPrivateBrowsing.html
dom/tests/mochitest/localstorage/test_localStorageQuotaSessionOnly.html
dom/tests/mochitest/localstorage/test_localStorageQuotaSessionOnly2.html
dom/tests/mochitest/localstorage/test_localStorageReplace.html

all cause lots of occurrences of:
ASSERTION: XPConnect is being called on a scope without a 'Components' property

In general, these assertions appear to all be assertions about accessing a window wrapped by two proxies, and the JS stack is typically like this:

0 doNextTest() ["http://mochi.test:8888/tests/dom/tests/mochitest/localstorage/test_localStorageQuotaSessionOnly2.html":182]
    this = [object Window @ 0xca41c68 (native @ 0x91ea2d8)]
1 onMessageReceived(event = [object MessageEvent @ 0xba904a8 (native @ 0xc450248)]) ["http://mochi.test:8888/tests/dom/tests/mochitest/localstorage/interOriginTest.js":34]
    this = [object Window @ 0xca41c68 (native @ 0x91ea2d8)]

Comment 1

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

Actually, also:
dom/tests/mochitest/localstorage/test_removeOwnersAPI.html
dom/tests/mochitest/localstorage/test_removeOwnersAPISessionOnly.html
dom/tests/mochitest/sessionstorage/test_sessionStorageReplace.html

Comment 2

[Ryan VanderMeulen [:RyanVM]]

This assert is long gone. Any remaining assertions should be in their own bug(s).