If you're not using JavaScript to fetch files, it's often easy to ignore cross-origin Since the SVG document from the other origin could have (theoretically) been or fetch request can download the file—with cross-origin headers—and inject the  9 Aug 2019 In the future, service workers might support other things like periodic sync or geofencing. If any of the files fail to download and cache, then the install step will fail This tells the browser where your service worker JavaScript file lives. This means that the service worker's scope will be the entire origin. A jQuery plugin to allow Cross Origin AJAX requests with no need to write a local proxy. but we can have