<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=568341) </details> <!--IssueSummary end--> ## Problem to solve After upgrading our GitLab CE omnibus instance from **18.0.x to 18.2.x**, the WebIDE stopped working. ## Further details Our configuration has CSP header enabled, with strict configuration. On browser console, clear error on worker-src requiring blob:. ## Proposal * Add a note in the upgrade documentation for 18.x releases about the new CSP requirement. * Update the WebIDE documentation page to explicitly mention required CSP directives (e.g. `worker-src blob:`). ## Who can address the issue Anyone familiar with GitLab documentation. ## Other links/references