The Application Cache, also known as AppCache,
is deprecated.
How the Lighthouse Application Cache audit fails
Lighthouse flags pages that use the Application Cache:
This audit fails when Lighthouse finds a reference to
the Application Cache manifest in a page's <html> tag.
For example, this markup causes the audit to fail:
<html manifest="example.appcache">
...
</html>
Use the Cache API instead of the Application Cache
To pass this audit,
remove the manifest from your page,
and use the
Cache API
via a service worker
instead.
To migrate from the Application Cache to service workers,
consider using the
sw-appcache-behavior library.
This library generates a service-worker-based implementation of the behavior
defined in an Application Cache manifest.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2019-05-02 UTC."],[],[]]