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https://issues.apache.org/jira/browse/IGNITE-8962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16537943#comment-16537943
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Ilya Borisov commented on IGNITE-8962:
--------------------------------------
The issue is caused by content security policy violation, no idea why this
didn't happen before. To fix it, change webpack dev server headers to:
{code:javascript}
headers: {
'Content-Security-Policy': `worker-src 'self' blob:; script-src 'self'
'unsafe-inline' 'unsafe-eval' data: http: https:`
},{code}
[~vsisko] please check that the same doesn't happen when wev console is served
by nginx (i.e. from docker).
> Web console: Failed to load blob on configuration pages
> -------------------------------------------------------
>
> Key: IGNITE-8962
> URL: https://issues.apache.org/jira/browse/IGNITE-8962
> Project: Ignite
> Issue Type: Bug
> Components: wizards
> Affects Versions: 2.7
> Reporter: Vasiliy Sisko
> Priority: Major
>
> On opening *Advanced* tab of cluster configuration in log printed several
> messages:
> {code:java}
> Refused to create a worker from
> 'blob:http://localhost:9000/171b5d08-5d9a-4966-98ba-a0649cc433ab' because it
> violates the following Content Security Policy directive: "script-src 'self'
> 'unsafe-inline' 'unsafe-eval' data: http: https:". Note that 'worker-src' was
> not explicitly set, so 'script-src' is used as a fallback.
> WorkerClient @ index.js:16810
> createWorker @ xml.js:647
> $startWorker @ index.js:9120{code}
> and
> {code:java}
> Could not load worker DOMException: Failed to construct 'Worker': Access to
> the script at
> 'blob:http://localhost:9000/639cb195-acb1-4080-8983-91ca55f5b588' is denied
> by the document's Content Security Policy.
> at new WorkerClient
> (http://localhost:9000/vendors~app.df60bff111cc62fe15ec.js:114712:28)
> at Mode.createWorker
> (http://localhost:9000/vendors~app.df60bff111cc62fe15ec.js:119990:22)
> at EditSession.$startWorker
> (http://localhost:9000/vendors~app.df60bff111cc62fe15ec.js:107022:39)
> at EditSession.$onChangeMode
> (http://localhost:9000/vendors~app.df60bff111cc62fe15ec.js:106978:18)
> at EditSession.setMode
> (http://localhost:9000/vendors~app.df60bff111cc62fe15ec.js:106943:18)
> at setOptions (http://localhost:9000/app.9504b7da2e0719a61777.js:28327:59)
> at updateOptions
> (http://localhost:9000/app.9504b7da2e0719a61777.js:28498:17)
> at Object.link
> (http://localhost:9000/app.9504b7da2e0719a61777.js:28505:13)
> at http://localhost:9000/vendors~app.df60bff111cc62fe15ec.js:61725:18
> at invokeLinkFn
> (http://localhost:9000/vendors~app.df60bff111cc62fe15ec.js:70885:9)
> warn @ index.js:3532
> $startWorker @ index.js:9122
> $onChangeMode @ index.js:9076{code}
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