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When I try to connect a sidebar plugin to my localserver (e.g. http://localhost:5173/) I constantly get a cors issue from the front network:
Request URL: http://localhost:5173/?auth_secret=ec16a8fd2f7765fc
Referrer Policy: origin-when-cross-origin
(blocked:other)
I followed the exact tutorial using vite, then tried again with nextjs: Same error in both cases. What am I missing?
Best answer by samsheridan
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+7
+3
I’m using the sample plugin with Vite at http://localhost:5173 with no CORS issues. It’s working in Edge. Front loads sidebar plugins in an iframe locally, so you don’t need to worry about exposing it or anything, as long as your local browser can reach it. Do you get anything if you visit that URL directly, outside the sidebar? It could be a more restrictive browser or browser policy from your organization, and certainly if you have some kind of proxy between you and Front that could be an issue, but this seems really weird. The only times I’ve had issues with CORS in developing sidebar plugins has been in making calls from the React app to our own backend API (easily solved by editing the API’s CORS policies) and other sites.
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