## The problem
Issue grafana/grafana#63934 (closed, 33 comments): <!--
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**What happened**:
Running a simple Grafana instane in a...
## What fixed it
The breakage was caused by Cloudflare's JavaScript Auto Minify mangling the frontend assets. Fix it in this order:
1. In Cloudflare, turn off Speed > Optimization > JavaScript Auto Minify.
2. Purge the Cloudflare cache so the mangled assets are gone.
3. Clear your browser's site data (or restart the browser) so it does not keep serving the cached broken JS.
Users confirmed the UI worked again after these three steps.