title: After deploy to firebase, changes in browser will not update without deleting site cache in browser
body: <p>Instead of asking all users to delete their cache when an update is pushed, is there a script I can add to my app so that when the site is loaded it deletes the existing cache for the site? </p>
  
  <p>I could remove the script when the app is complete but for development and testing purposes I deploy (or serve locally) multiple times a day, its a pain to have to delete my cache every time.</p>
  
  <p>An even bigger pain is trying to get others to delete cache when I tell them the site has been updated and I need feedback.</p>
  
  <p>Thanks</p>
  
  <p>EDIT: After much searching I think this <a href="https://stackoverflow.com/questions/48157823/how-to-remove-a-service-worker-registered-in-previous-deploy-from-users-browser?rq=1">How to remove a service worker registered in previous deploy from users' browsers with the newly deployed version of site (Firebase)?</a> is similar to what the problem is, but the answers are not specific. It looks like the issue might be with a service worker but I am unsure how to implement a fix.</p>