Open
Bug 1381088
Opened 7 years ago
Updated 2 years ago
console error for "Got a removal of an actor we didn't know about: server1.conn0.child1/domnode1489" at inspector.js:786, when unticking ::after 'content' declaration in devtools, at Facebook
Categories
(DevTools :: Inspector, defect, P2)
DevTools
Inspector
Tracking
(firefox57 fix-optional)
NEW
Tracking | Status | |
---|---|---|
firefox57 | --- | fix-optional |
People
(Reporter: dholbert, Unassigned)
Details
(I'm starting with a fresh profile) STR: 1. Log in to Facebook. 2. View your main timeline page ( https://www.facebook.com/ ) 3. Inspect a particular tiny element in Devtools -- specifically, the triangle pointer for the text bubble underneath "Create a post" at the top. (For me, this triangle is a pseudo-element for an element that looks like this: <span class="_4-h8"></span>) 4. In DevTools' DOM inspector view, toggle that ^^ span to open it up and show its pseudo-element ::after child. 5. Click that psuedo-element ::after child, and click "Rules" on the right. 6. Untick and retick the checkbox for this declaration several times: content: ''; 7. Open the Browser Console (or look at the terminal where you started Firefox from) 8. Repeat steps 6-7 more times if you like. ACTUAL RESULTS: Nothing goes wrong the first time I untick/retick the "content" property's checkbox, but from the second time onwards, each untick operation produces an error like this in the browser console (and on my terminal): > Got a removal of an actor we didn't know about: server1.conn0.child1/domnode1489 inspector.js:786 This error links to the following line of source: https://dxr.mozilla.org/mozilla-central/rev/8486950bd91878bf077a9ac33cb3c018288fe518/devtools/shared/fronts/inspector.js#786 EXPECTED RESULTS: No such error. (I tried to create a reduced testcase with just an ::after pseudo-element and a 'content' property, but I couldn't reproduce with that simple testcase. I can reproduce very reliably at Facebook, though. So there's some extra complexity involved with the Facebook site that is required to trigger this bug.)
Reporter | ||
Comment 1•7 years ago
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(In reply to Daniel Holbert [:dholbert] from comment #0) > 3. Inspect a particular tiny element in Devtools -- specifically, the > triangle pointer for the text bubble underneath "Create a post" at the top. > (For me, this triangle is a pseudo-element for an element that looks like > this: > <span class="_4-h8"></span>) The triangle element in question is shown in this screenshot (it's just to the lower-right of the "e" at the end of "Create"): https://bug1380897.bmoattachments.org/attachment.cgi?id=8886443
Updated•7 years ago
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Component: Developer Tools → Developer Tools: Inspector
Updated•7 years ago
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status-firefox57:
--- → fix-optional
Priority: -- → P2
Updated•6 years ago
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Product: Firefox → DevTools
Updated•2 years ago
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Severity: normal → S3
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Description
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