ServiceWorker hangs on start

I've noticed this on fe.soapbox.pub as well as remote sites I don't control. Opening the site displays a loading indicator that never goes away. Logs:

application-f699340600c5bb3c1ca5.js:2 Stop!
application-f699340600c5bb3c1ca5.js:2 This is a browser feature intended for developers. If someone told you to copy-paste something here it is a scam and will give them access to your account.
favicon.png:1          Failed to load resource: the server responded with a status of 404 ()
/packs/js/error-3a9b88c46cd4ec4844fe.chunk.js:1          Failed to load resource: the server responded with a status of 404 ()
ChunkLoadError: Loading chunk 5 failed.
(error: https://fe.soapbox.pub/packs/js/error-3a9b88c46cd4ec4844fe.chunk.js)
    at Object.j (common-7f3cad274d15b977b7f2.js:2:881666)
    at common-7f3cad274d15b977b7f2.js:2:868800
    at Array.reduce (<anonymous>)
    at Function.e (common-7f3cad274d15b977b7f2.js:2:868765)
    at Object.vl (application-f699340600c5bb3c1ca5.js:2:1639790)
    at application-f699340600c5bb3c1ca5.js:2:1641789
/packs/js/locale_en-json-81d40cb31353eb3aa6b3.chunk.js:1          Failed to load resource: the server responded with a status of 404 ()
application-f699340600c5bb3c1ca5.js:2 ChunkLoadError: Loading chunk 91 failed.
(error: https://fe.soapbox.pub/packs/js/locale_en-json-81d40cb31353eb3aa6b3.chunk.js)
    at Object.j (common-7f3cad274d15b977b7f2.js:2:881666)
    at common-7f3cad274d15b977b7f2.js:2:868800
    at Array.reduce (<anonymous>)
    at Function.e (common-7f3cad274d15b977b7f2.js:2:868765)
    at o (application-f699340600c5bb3c1ca5.js:2:1408367)
    at o (application-f699340600c5bb3c1ca5.js:2:880583)
    at application-f699340600c5bb3c1ca5.js:2:881043
    at Object.en (application-f699340600c5bb3c1ca5.js:2:881183)
    at application-f699340600c5bb3c1ca5.js:2:1638314
    at Zu (application-f699340600c5bb3c1ca5.js:2:1341136)
(anonymous) @ application-f699340600c5bb3c1ca5.js:2
manifest.json:1          Failed to load resource: the server responded with a status of 404 ()
manifest.json:1 Manifest: Line: 1, column: 1, Syntax error.
manifest.json:1          Failed to load resource: the server responded with a status of 404 ()
DevTools failed to load source map: Could not load content for https://fe.soapbox.pub/packs/js/common-7f3cad274d15b977b7f2.js.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
DevTools failed to load source map: Could not load content for https://fe.soapbox.pub/packs/css/application-3e1d83cb.css.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
DevTools failed to load source map: Could not load content for https://fe.soapbox.pub/packs/js/application-f699340600c5bb3c1ca5.js.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE