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Service Worker

ServiceWorkers (formerly Navigation Controllers) are a new system that provides event-driven scripts that run independent of web pages. They are similar to SharedWorkers except that their lifetime is different and they have access to domain-wide events such as network fetches.

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Jonathan Sampson [MSFT] shared this idea  ·   ·  Flag idea as inappropriate…  ·  Admin →


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  • Misha White commented  ·   ·  Flag as inappropriate

    Another trojan horse specification by w3c/google...
    I hope you know how to secure it :D

  • Richard Maher commented  ·   ·  Flag as inappropriate

    Great news! Now if you used ServiceWorkers to deliver Background Geolocation the world will be using Edge.

  • Richard Maher commented  ·   ·  Flag as inappropriate

    Please be advised that, as promised/threatened, I have added the Trip Summary page and you can now map and replay your trip on Google Maps.

    The new version of the code is at the same link

    Can someone please try it on Edge 16?

    Most important design/proposed-specification change is that TravelManager subscription should now be Client specific. The TravelEvent must contain the intended ( This means that the UA must monitor and filter GeoLocation updates per client. I have also added new demo functionality such as a Trip Summary that is displayed when you press the "Arrive" button. The trip can also be replayed onto Google Maps by pressing "Map Trip" or "Replay". If the last and next geolocation updates for the trip are both visible in the Map window then smooth Marker movement is achieved via CSS transitions.

    *PLEASE* help Background GeoLocation get up and help Web Apps compete with Native Apps!

    If there is something wrong with my TravelManager solution design then let me know. Tear holes in it!

  • Jani Mäkinen commented  ·   ·  Flag as inappropriate

    This is a crucial part of the modern web, bring Edge to the same level with this please :) Great work on the browser so far!

  • Fredik commented  ·   ·  Flag as inappropriate

    Sorry to nag, But it has taken a while now. I know it's a lot to implement but I think that you should start by partially supporting service worker now so we can start using it and not having to wait for every feature to come along. Otherwise it feels like we are going to have to wait another year. Some things we can polyfill ourself. Make a Minimum Viable Product (MVP)

    I got a question is there some issue tracker i can follow? (like bugzilla or chromium bugs)
    The "Working on it" label is not so appealing

  • Filip Chalupa commented  ·   ·  Flag as inappropriate

    Please is there any status update? How far are we from seeing service workers in at least the insider program? Last message is year old now.

  • Jimmy commented  ·   ·  Flag as inappropriate

    put new javascript api's on hold that can easily be polyfilled and work on fixing things like this please

  • Richard Maher commented  ·   ·  Flag as inappropriate

    @Jake Archibald *Please* stop blackballing Background Geolocation. Just try operating in a meritocracy for a change where the best ideas are approved by the best available minds. I know it was impertinent and insubordinate to attempt to bypass the W3C/IETF tentacles and go straight to engineering but please don't punish others for my folly!

    WebApps *need* Background Geolocation if we are to compete at all with Native Apps. Uber, Dominos, Deliveroo, GrindR, Facebook, Maps and on and ON.

    Stop this "Not invented here" nonsense and get on with it!

    Service Workers are the conduit; just make it happen!

    Are there no adults here?

  • David Storey [MSFT] commented  ·   ·  Flag as inappropriate

    @Richard Maher this is not the venue for debating what was discussed in working group face to face or issues with the spec. Please remain on topic.

    Thank you for providing a link to background geolocation suggestion. People that support this will vote accordingly. We will take these votes into account when planning what features to work on in the future.

  • Richard Maher commented  ·   ·  Flag as inappropriate

    Look mate, I don't think johnny-come-lately Microsoft should be lecturing anyone about the definition of ServiceWorker functionality.

    Once again, this is the link to the *very* recent F2F Tokyo session specifically and exclusively dealing with Service Worker issues. Yet, from that very agenda: -

    Foreign fetch

    Foreign fetch vs non-credentialed requests
    consider allowing static routing only for "foreign fetch" for anonymous requests
    Is there any way for a web page to see if their requests will be intercepted by a foreign fetch handler?
    Allow overlapping scopes
    clientId on ForeignFetchEvents
    registerForeignFetch({ origins, scope }) optional
    Define procedure to convert options object of <code>sw.register()
    Expose fragments cross-origin for subresources
    Foreign fetch and no-referrer Referrer Policy
    CORS pre-flight for foreign fetch
    Installing a foreign SW as part of a subresource request
    preload for Foreign Fetch

    Fetch & streams

    Consider mechanisms to bypass the service worker for things that we know won't be in it's cache
    Upload streams
    Fetch cancellation/control/observing

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