Bug 188495

Summary: importScripts should throw an error when used to load new resource after `install` event
Product: WebKit Reporter: Matt Falkenhagen <falken>
Component: Service WorkersAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal    
Priority: P2    
Version: Safari Technology Preview   
Hardware: Unspecified   
OS: Unspecified   

Description Matt Falkenhagen 2018-08-12 18:09:14 PDT
Same as https://bugs.chromium.org/p/chromium/issues/detail?id=719052

The WPT test for this is: service-workers/service-worker/import-scripts-updated-flag.https.html

As far as I can tell from the demo site from https://github.com/w3c/ServiceWorker/issues/1021#issuecomment-266708110, Safari Technology Preview is allowing the importScripts(), so the WPT test should fail.

Chrome intends to change to align with the spec, as Firefox and Edge have done.