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Add Request Soft Update algorithm for use by other specifications #1847

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Merged
monica-ch merged 4 commits into from
Sep 17, 2026
Merged

Add Request Soft Update algorithm for use by other specifications #1847

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5d9896d
Editorial: export Soft Update algorithm
monica-ch Sep 2, 2026
d583ee4
Use precise UA discretion in Request Soft Update
monica-ch Sep 8, 2026
49711d1
Clarify Request Soft Update discretion
monica-ch Sep 8, 2026
1bcd291
Address Request Soft Update review feedback
monica-ch Sep 10, 2026
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22 changes: 22 additions & 0 deletions index.bs
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Expand Up @@ -2928,6 +2928,28 @@ spec: storage; urlPrefix: https://storage.spec.whatwg.org/
1. Invoke <a>Schedule Job</a> with |job|.
</section>

<section algorithm>
<h3 id="request-soft-update-algorithm"><dfn export>Request Soft Update</dfn></h3>

This algorithm allows other specifications to request that the user agent check a [=/service worker registration=] for updates.

: Input
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:: |registration|, a [=/service worker registration=]
:: |requestingStorageKey|, a [=/storage key=]
:: |forceBypassCache|, an optional boolean, false by default
: Output
:: None

1. If |registration|'s [=service worker registration/storage key=] is not [=storage key/equal=] to |requestingStorageKey|, return.
1. If the user agent decides to limit the frequency of update checks for |registration|, return.

Note: The user agent may protect against excessive resource use by rate-limiting update checks or by treating several invocations for |registration| that occur close together as a single invocation. Callers cannot rely on this algorithm resulting in an update check.

1. Run the [=Soft Update=] algorithm with |registration| and |forceBypassCache|.

Note: Calling specifications are responsible for supplying the [=/storage key=] associated with their request.
</section>

<section algorithm>
<h3 id="installation-algorithm"><dfn>Install</dfn></h3>

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