scala-js/scala-js-dom

xhr.responseURL for redirects

bblfish opened this issue · 3 comments

bblfish commented

In order to be able to find out if a request was redirected to another URL one needs to use the responseURL method on XMLHTTPRequests which I found defined in the whatwg xhr spec.

Currently the code I had to write which works, but is not nice, looks like this:

  val redirectURL = xhr.asInstanceOf[js.Dynamic].responseURL.asInstanceOf[String]

You can test it in the browser by compiling and running the html

It may be useful to have a static implementation - though I think it should be done in a way to take account of many browsers returning an undefined value I suppose.

bblfish commented

As expected the simple version did not work with Safari or older browsers. Using UndefOr helped as shown here

sjrd commented

PR welcome.

bblfish commented

Taking time for PR, as I need to get much more familiar with the ecosystem, before I can feel confident I am doing the right thing.