My 5th book "50 Tips on JavaScript" is on sale. Go get it from https://50tips.dev.
Illustrated guide to 50 of the most interesting JavaScript topics.

basic

The simplest HTTP proxy with custom headers

These days I had an interesting problem to solve. At work, on our staging environment, we have basic authorization. It works really well but for some older versions of Chrome we experienced a weird issue. The browser did not pass the authorization header. The app runs fine but as soon as it does a fetch request to a local endpoint the request fails with 401 not-authorized error. In the modern browsers that's not happening because the browser kinda knows that we came here with basic auth and automatically includes authorization: basic ... header.

...read more