CORS issue: Redirect is not allowed for a preflight request

I’m testing sending queries to Monday from a locally hosted app.

When making the request, I get this CORS error:

Access to fetch at '' from origin 'http://localhost:4567' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request.

Is there a way to allow redirects for preflight requests in CORS?

Hey Bryan!

Hmm. Are you making calls to our API directly from a webpage in a browser? What are you doing with your app?

I did some research on preflight requests and they seem to be a common check that browsers perform. To avoid this error, any chance you can route requests from your page to some server-side code, and use the server to make the API calls?

I’d also love to see your code so we can identify if there are other workarounds here.


Hey! Thanks, sorry for the late reply here.

I’m testing it from a browser using the NodeJS package graphql-request, but we’re going to just use the Zendesk plugin + Zapier. It’s enough for what we need.


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