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Bug 25525 - appcache: a way to get the data from appcached URLs that end up being 404, 410, 401, 403...
Summary: appcache: a way to get the data from appcached URLs that end up being 404, 41...
Status: RESOLVED WONTFIX
Alias: None
Product: WHATWG
Classification: Unclassified
Component: HTML (show other bugs)
Version: unspecified
Hardware: Other other
: P3 enhancement
Target Milestone: Needs Impl Interest
Assignee: Ian 'Hixie' Hickson
QA Contact: contributor
URL:
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Keywords:
Depends on:
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Reported: 2014-04-30 22:31 UTC by Ian 'Hixie' Hickson
Modified: 2014-09-25 23:01 UTC (History)
2 users (show)

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Description Ian 'Hixie' Hickson 2014-04-30 22:31:33 UTC 
Suppose a URL represents an editable document in a larger app that is appcached.
Then, suppose that document is deleted, so that it now returns 404.
The current appcache model considers this a failure. We should have a way to make that something you can handle more gracefully.
Comment 1 Ian 'Hixie' Hickson 2014-09-25 23:01:43 UTC 
Cache such files as data in local storage, and use XHR to get them, with a network whitelist for the data files.

Or, use ServiceWorkers.