Open
Bug 1491994
Opened 6 years ago
Updated 2 years ago
Content scripts sometimes run twice for about:blank
Categories
(WebExtensions :: General, defect, P3)
Tracking
(Not tracked)
UNCONFIRMED
People
(Reporter: bugzilla, Unassigned)
Details
Attachments
(1 file)
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484 bytes,
application/zip
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Details |
User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0
Build ID: 20180905135451
Steps to reproduce:
1. Install the attached webExtension
2. change the setting so that a new tab opens a blank page
3. open a new tab
4. open the browser console
Actual results:
The follwing error is shown: SyntaxError: redeclaration of const test
Expected results:
No error
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Updated•6 years ago
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Summary: Content scripts cannot use const variables in about:blank → Content scripts sometimes run twice for about:blank
Since the console.log() is only shown once I do not think the script is run twice.
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Comment 2•6 years ago
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(In reply to kkapsner from comment #1)
> Since the console.log() is only shown once I do not think the script is run
> twice.
That's because the duplicate const declaration prevents the second attempt from actually executing.
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Updated•6 years ago
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Priority: -- → P3
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Updated•2 years ago
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Severity: normal → S3
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Description
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