In the first step of the oauth flow, we get stuck at this URL:
In the debugger I see an important-looking 404 trying to hit this API endpoint:
For human readability, it looks like this unescaped:
If I had to guess, the path there should not end in `true`, as no such endpoint exists, which explains the 404. But I did not construct this URL, so maybe it indicates a misconfiguration somewhere on my end?
This is on Sandbox, a REST client app requesting a code rather than an access token. Using the access token locally I can make it past this point, but I cannot complete the integration with that setup, so this is from a remote server using "code".