Error: No route matches URL - when using redirectBack

[piotrkulpinski]

Hi,

Recently I started to have some weird issues with redirectBack helper.
Not sure if something changed in this library on in Remix itself, but if I use the helper, I get Error: no route matches URL every time. The route is valid, but the Referer returns the full url with origin so maybe that's the reason.

Has anyone have a similar issues?

Thanks!

[piotrkulpinski]

Here's full error response:

data: "Error: No route matches URL \"http://localhost:8100/sites\""
error: Error: No route matches URL "http://localhost:8100/sites" at getInternalRouterError
internal: true
status: 404
statusText: "Not Found"

The route is valid, the problem is that it's an absolute url rather than relative one.
Does anyone experienced this recently, as well?

[piotrkulpinski]

Currently, I'm using this as a workaround, but if someone else is having the same issue, maybe it's a good idea to add it to the core:

function redirectBack(
  request: Request,
  { fallback, ...init }: ResponseInit & { fallback: string }
): Response {
  const referer = request.headers.get('Referer')
  const origin = request.headers.get('Origin')

  return redirect(referer?.replace(origin, '') ?? fallback, init)
}