Topic: React - service worker won't unregister when updating production build
Expected behavior
When updating the production build, the old service worker should unregister, so that it won't try to use old cached js files.
Actual behavior
Updated service worker just works for new visitors, old users need to delete their browser files to get the website working again.
It's strange, it has never happened to me before - in general, when you create a new build, the CRA scripts rename your files if there is even one-bit difference in the file.
How did you test it? Working with service workers can be tricky - if you make a change to your service worker, then reloading the page won't kill the old one and activate the new one (it detects the change by requesting the service worker file each time and comparing the old and the new byte-for-byte). This is because the old window is never actually closed, meaning there's never a time to swap them out β you need to kill the tab completely then reopen it.
Hi there, do you use create-react-app as a boilerplate?
ytec priority commented 6 years ago
Yes, just like you configured it. Didn't change much in the stack.
ytec priority commented 6 years ago
I see there is implementation for updating the serviceworker. But the serviceworker only updates if its different to the old one. The problem is, that there are some cached files that break the site when updating a new build. Users will have white screens until they clear or disable their browser cache. So its not the serviceworker file itself but it needs to update the cached files.
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Answered
- ForumUser: Priority
- Premium support: Yes
- Technology: MDB React
- MDB Version: 4.9.0
- Device: PC
- Browser: Chrome
- OS: Windows
- Provided sample code: No
- Provided link: No