Getting TypeError: Failed to fetch error in Swagger UI

[Dimpy Adhikary]

Hi All,

I need help to resolve this swagger UI issue. I am hosting swagger UI locally. I have the swagger specification json pointing to my server.

When I try to send any request from Swagger UI, I am getting TypeError: Failed to fetch error all the time. But the request is actually successful and I could see the response in the browser console. I am able to run the curl command generated from the command prompt as well. I have downloaded swagger UI and using http-server --cors I am starting the server. I am opening the swagger UI using this Url http://127.0.0.1:8080/swagger-ui/swagger-ui/dist/. Note: the default http://petstore.swagger.io/v2/swagger.json is working fine. But if I browse my swagger spec file from the swagger UI and execute any request I am getting the above error all the time. My swagger specification file is present in the same /dist folder. Looking forward to get help from experts in this group.

Regards,

Dimpy

[Ron Ratovsky]

Can you share the spec you’re trying to load?

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[Dimpy Adhikary]

Hi Ron,

I am attaching one sample for your reference.

Regards,

Dimpy

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[Dimpy Adhikary]

I am able to resolve it by enabling CORS.

Regards,

Dimpy