feat: handle backend failures with retry#143
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The web UI used to spin forever when the backend stalled and printed raw text for other errors. Now it aborts a stalled request and surfaces every failure as a clear, styled message with a retry path. - web: abort at the chosen timeout plus 5s leniency, then relabel the button to Retry; classify and explain unreachable backends, HTTP errors (4xx vs 5xx), and unreadable or undisplayable responses - web: every failure message links to running a self-hosted backend - web: escape backend-supplied text before rendering it - backend: /check sends liberal CORS headers and answers OPTIONS preflight so any frontend or self-hosted origin can call it - docs: README self-hosting section covering CORS and iframe embedding - rebuild compiled CSS so the warning boxes render (also fixes the existing stale-records warning, which shipped unstyled)
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The web UI used to spin forever when the backend stalled and printed raw text for other errors. Now it aborts a stalled request and surfaces every failure as a clear, styled message with a retry path + hint at self-hosting.
Demo
Various error states now have meaningful feedback to the user: