Cors origin RegExp issues

Hey there, first of all thank you for this middleware.

I am having some issues using the regexp with the origin using the cors middleware. When I set the value to be /http:\\/\\/localhost:[0-9]+$/ the regexp is properly constructed. Putting some breakpoints in the lib I can see that the origin is allowed using the regexp

But for un unknown reason after the header are set properly, I still get a cors issue

Funny enough, the cors error happen only on the auth route as you can see here

The cors are setup on app using app.use and then later on the auth routes are added to a Router() and the router is consumed by app.use

Would you have any idea what is happening?

[dougwilson]

test to use a regexp such as /http://localhost:700\d/ or similar and pass it to to the origin option and see if you obtain the same result as me ☺️ wdyt?

Yea, I tested the regexp locally and there are tests in our test suite as well that are working fine. So something different between the environments and code or something and not sure how to determine that since what i tried before responding works and the test suite verifies thay regexp matching works. I believe absolutely you are having an issue, but just don’t know the cause and how to reproduce it to debug, which is why i asked for one if you’re interested in having me debug 😃

[adrien2p]

Sorry missed it but I was using /g flag among other tests and it was certainly the culprit.