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Is it only on iOS? Or also desktop?
My service worker is #1520:
Not sure how to check on mobile but maybe with USB debugging or something.
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I'm not sure those numbers are global ids. Mine is #8745
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Oh, interesting, guess I must have skipped some (a lot of) updates
So makes sense, it's not a global id
Good point!
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I’ve only tried iOS. I can take a look via USB debug later, I’m traveling today.
What does this number mean?
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Nah, I think the number is not relevant anymore, see @k00b's comment
The number just increments when your service worker was updated
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