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For the past three days, I have seen Outlook and Twitter service workers trigger randomly, even if I never opened those sites in non-private mode. They consume 2 threads and distract me. Then I force quit them.

Before applying the solution in

I need to know

  • Why do websites use it?
  • What would be the impact if I disable all of them ? (I'd prefer if I can handle it on case by case basis)
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Service Workers can be used by web sites to handle functionality such as:

  • Enabling Offline mode when you have no Internet connection
  • Receiving Push Notifications
  • Caching data files for faster load times
  • Synchronizing data in the background to provide streaming updates
  • Trigger data refreshes based on for example location changes

The impact of disabling the feature depends on the sites involved. Some would just continue working as normal, but perhaps work a tad slower - others would loose functionality, such as offline mode or push notifications - and again others would stop working completely as they insist on that feature working.

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