CORS Requests failing from v0.41.0 onwards

NWJS Version : 0.41.0 and later Operating System : Windows 10 64bit

I tried updating a project I haven’t worked on in a while to the latest nwjs version. However, requests to my local dev server using window.fetch fail with the following errors visible in the console:

Access to fetch at ‘https://localhost:8080/some/url/’ from origin ‘http://localhost:9090’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. If an opaque response serves your needs, set the request’s mode to ‘no-cors’ to fetch the resource with CORS disabled.

:8080/some/url/:1 Failed to load resource: net::ERR_FAILED

The maximum version I can use with the requests still working is 0.40.2, with 0.41.0 up to even 0.41.3 it will result in these errors. Did I breaking changes?

[rogerwang]

Thanks for the sample. It works in the latest 0.43.0. Looks like it got fixed in that version. Closing for now.

[WesSouza]

@rogerwang I just stumbled upon this problem.

Here’s a reproduction setup with both 0.40.1 and 0.41.0: https://github.com/WesSouza/nwjs-7182-cors-sample

Let me know if this is clear enough and helpful.