hCaptcha invalidates Back/Forward Cache

  • Resolved tobet

    (@tobet)


    1 week, 1 day ago

    bfcache helps speed up navigations to sites that have recently been visited, but it can be invalidated by client-side code execution. It appears that hCaptcha is using a “SharedWorkerWithNoActiveClient” which invalidates the bfcache.

    Steps to reproduce:

    1. Navigate to a page using hCaptcha
    2. Open Inspect Element -> Application -> Back/forward cache
    3. Click “Test back/forward cache”

    (It can also be identified in a Lighthouse report, listed as “Page prevented back/forward cache restoration”)

    The page I need help with: [log in to see the link]

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