1237119 - Intermittent test_value_cloning.html | Failed to look up property-controlling pref 'layout.css.prefixes.webkit'

Status: RESOLVED WORKSFORME

(Core :: CSS Parsing and Computation, defect, P3)

Description

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

test_value_cloning.html | Failed to look up property-controlling pref 'layout.css.prefixes.webkit' ([Exception... "Component returned failure code: 0x8000ffff (NS_ERROR_UNEXPECTED) [nsISyncMessageSender.sendSyncMessage]" nsresult: "0x8000ffff (NS_ERROR_UNEXPECTED)" location: "JS frame :: chrome://specialpowers/content/specialpowers.js :: SpecialPowers.prototype._sendSyncMessage :: line 83" data: no])



https://treeherder.mozilla.org/logviewer.html#?job_id=19307750&repo=mozilla-inbound

Comment 1

[Daniel Holbert [:dholbert]]

FWIW, I added this ok(false, "Failed to look up property-controlling pref [...]") expression in response to a review comment, in bug 1208136 comment 5.

This *should* only fail if the about:config pref doesn't have any value at all. But this about:config pref absolutely has a value -- it's had a value (in all.js) since bug 837211 comment 38, in October.  So, this failure probably indicates a rare bug in our pref-handling code, or in specialpowers.

Comment 2

[BMO Automation]

Bulk assigning P3 to all open intermittent bugs without a priority set in Firefox components per bug 1298978.