Request to server Go backend server fails from my frontend app, success from anywhere else | Discord Gophers | Page 1

cedar gull Sep 16, 2022, 8:59 AM

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cors.Options{
        AllowedOrigins:   []string{"http://localhost:*"},
        AllowedMethods:   []string{"GET", "POST", "PUT", "DELETE", "OPTIONS"},
        AllowedHeaders:   []string{"Accept", "Authorization", "Content-Type", "X-CSRF-Token"},
        AllowCredentials: false,
        MaxAge:           300, // Maximum value not ignored by any of major browsers
    }

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if you're planning to use the IP directly (127.0.0.1) you need that in there too

red hornet Sep 16, 2022, 9:39 AM

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cedar gull if you're planning to use the IP directly (127.0.0.1) you need that in there too

How would i allow all origins ?

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from the internet

cedar gull Sep 16, 2022, 9:40 AM

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or cors.AllowAll

nova caveBOT Sep 16, 2022, 9:41 AM

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Package github.com/rs/cors

cedar gull Sep 16, 2022, 9:41 AM

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https://pkg.go.dev/github.com/rs/cors#AllowAll

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chi's cors is a fork of this, so they should both work exactly the same

red hornet Sep 16, 2022, 10:01 AM

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Okay i have an issue I don't know if it comes from Go

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Request to my go server gets refused from my svelte app

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azureuser@myvm:~$ curl http://localhost:8080/server
{"address":"127.0.0.1","ip":"127.0.0.1","port":"8080","zone":""}

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fails in the browser, works with curl

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http://localhost:8080/server also works from the browser when i put in the external IP of my vm
also from postman

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Request to server Go backend server fails from my frontend app, success from anywhere else

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Currently have cors.AllowAll

cedar gull Sep 16, 2022, 10:18 AM

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Can you show how you apply the middleware?

wheat pagoda Sep 16, 2022, 11:23 AM

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If it's an azureVM i'm guessing you're not using the browser in a UI, so are you connecting from a remote system

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if so localhost won't work from the frontend for obvious reasons

red hornet Sep 16, 2022, 11:43 AM

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Oh that's an interesting point, i thought maybe it was the server running in the VM connecting to the API internally but maybe the call is from the browser

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maybe i'm just that stupid

wheat pagoda Sep 16, 2022, 12:04 PM

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you lose track sometimes when working on fullstack

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🙂

red hornet Sep 16, 2022, 12:12 PM

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Okay it can connect but now i have cors issues

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fetcher.js?v=2c1678e5:44                  Uncaught (in promise) TypeError: Failed to fetch
    at window.fetch (fetcher.js?v=2c1678e5:44:10)
    at register (auth.ts:32:25)
    at HTMLFormElement.submit (Register.svelte? [sm]:10:26)
    at HTMLFormElement.<anonymous> (index.mjs:420:19)```

red hornet Sep 16, 2022, 12:12 PM

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wheat pagoda you lose track sometimes when working on fullstack

Yeah i need sleep 🙂 but thanks for pointing it out

cedar gull Sep 16, 2022, 12:15 PM

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red hornet ```has been blocked by CORS policy: Response to preflight request doesn't pass a...

says you can't use the wildcard if you include credentials (cookies)

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you can still use https://* and http://* afaik?

red hornet Sep 16, 2022, 12:15 PM

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I'll try that

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YES

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IT WORKS

#Request to server Go backend server fails from my frontend app, success from anywhere else