Exposing localhost to the internet via tunneling (using ngrok): HTTP error 400: bad request; invalid hostname

Question

From previous versions of the question, there is this: Browse website with ip address rather than localhost, which outlines pretty much what I\'ve done so far...I\'ve got th

Answer 1

Troubleshot this issue with ngrok. In the words of inconshrevable, some applications get angry when they see a different host header than expected.

Running the following command should fix the problem:

ngrok http [port] -host-header="localhost:[port]"