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CX2: Uncaught TypeError: Cannot read property 'element' of null
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Description

  • Article: Mumbai
  • Language Pair: en -> hi
  • MT: Yandex

Error seen:

Uncaught TypeError: Cannot read property 'element' of null
    at VeCeMWTransclusionInlineNode.ve.ce.View.initialize (ve.ce.View.js?9c8a2:109)
    at VeCeMWTransclusionInlineNode.ve.ce.LeafNode.initialize (ve.ce.LeafNode.js?2240c:45)
    at VeCeMWTransclusionInlineNode.ve.ce.GeneratedContentNode.render (ve.ce.GeneratedContentNode.js?872c3:210)
    at VeCeMWTransclusionInlineNode.ve.ce.MWTransclusionNode.render (ve.ce.MWTransclusionNode.js?22ebc:180)
    at VeCeMWTransclusionInlineNode.ve.ce.GeneratedContentNode.doneGenerating (ve.ce.GeneratedContentNode.js?872c3:344)
    at ve.ce.GeneratedContentNode.js?872c3:281
    at fire (load.php?debug=true&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=15h9e2m:3317)
    at Object.fireWith [as resolveWith] (load.php?debug=true&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=15h9e2m:3447)
    at Object.deferred.(/core/anonymous function) [as resolve] (http://localhost/core/load.php?debug=true&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=15h9e2m:3778:36)
    at VeCeMWTransclusionInlineNode.ve.ce.MWTransclusionNode.onParseSuccess (ve.ce.MWTransclusionNode.js?22ebc:168)

Steps to reproduce:

  1. Start an article with given title and language pair.
  2. Save article.
  3. Go back to Dashboard.
  4. Open saved article.
  5. Scroll till last saved paragraph.
  6. Click next paragraph.
  7. Above error will happen. No user visible changes.

Event Timeline

This is happening after clicking on paragraph. Article was loaded from Saved article.

Vvjjkkii renamed this task from CX2: Uncaught TypeError: Cannot read property 'element' of null to mjaaaaaaaa.Jul 1 2018, 1:02 AM
Vvjjkkii raised the priority of this task from Medium to High.
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Vvjjkkii removed a subscriber: Aklapper.
CommunityTechBot renamed this task from mjaaaaaaaa to CX2: Uncaught TypeError: Cannot read property 'element' of null.Jul 2 2018, 9:25 AM
CommunityTechBot lowered the priority of this task from High to Medium.
CommunityTechBot updated the task description. (Show Details)
CommunityTechBot added a subscriber: Aklapper.

Same exception as T198826, so we should check if the fix there fixes this (it might not, the error was much further up the stack).

It seems T198826 is merged and deployed. We should check this again if that's fixing this issue?

Now I'm getting POST https://cxserver.wikimedia.org/v2/translate/en/hi/Yandex 500 () for any paragraph. @Petar.petkovic Is this already reported?

Now I'm getting POST https://cxserver.wikimedia.org/v2/translate/en/hi/Yandex 500 () for any paragraph. @Petar.petkovic Is this already reported?

I don't think that is reported. On which wiki did you try? On cx2-testing, I get 403 Forbidden because of Authorization header is not valid: JsonWebTokenError: secret or public key must be provided, for every paragraph, after which Yandex gracefully falls back to source text.

I don't think that is reported. On which wiki did you try? On cx2-testing, I get 403 Forbidden because of Authorization header is not valid: JsonWebTokenError: secret or public key must be provided, for every paragraph, after which Yandex gracefully falls back to source text.

I checked on Production. Yandex doesn't work on cx2-testing (or Labs instance). So, we need to test either locally or on Production for Yandex.

I can't reproduce this no longer (Both original issue and Yandex issues). So, this is unblocked and can be closed.

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