api.ServiceWorker - WebView on iOS does have support via App Bound Domains

[mfulton26]

What type of issue is this?

Incorrect support data (example: BrowserX says "86" but support was added in "40")

What information was incorrect, unhelpful, or incomplete?

WKWebView does not support service workers for all domains at once but it can for up to 10 domains on an app via App Bound Domains.

What browsers does this problem apply to, if applicable?

WKWebView on iOS

What did you expect to see?

That service workers are supported for up to 10 domains via App Bound Domains

Did you test this? If so, how?

I've used this feature in an app some years ago for 4 domains and it worked as expected.

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

https://stackoverflow.com/a/64155509/3255152

https://webkit.org/blog/10882/app-bound-domains/

Do you have anything more you want to share?

Thank you for all the great information and data on your site!

MDN URL

https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker

MDN metadata

MDN page report details

• Query: api.ServiceWorker
• Report started: 2025-08-01T23:45:05.925Z