[v10.2.x] Plugins: Don't auto prepend app sub url to plugin asset paths #82146
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Backport 99feb92 from #81658
What is this feature?
This moves the prefixing of
appSubUrl
for plugin assets to the frontend so it can be dynamically appended depending on the request.This is required because under certain conditions the image renderer changes the
config.appSubUrl
before making the request to Grafana backend. This leads to frontend asset paths for Grafana and external plugins being mismatched as the base and module are set in the backend when the server boots. As such we need this to be prefixed dynamically which means the frontend is pretty much our only choiceWhy do we need this feature?
Fixes a failed plugin loading bug with the Image Renderer plugin for instances of Grafana where requests are served from a sub path via proxy.
Who is this feature for?
Grafana Users
Which issue(s) does this PR fix?:
Fixes #76180
Special notes for your reviewer:
Please check that: