(Header "app_id" has unallowed character "_") but required to be used

You should send a message to @Bug-Support with details, because they should be allowed.

Apparently roblox needs to change a config on their side.

In the meantime, it is a bug, and you’ll need a workaround. Possible ones:

  • Maybe the oxford API has some undocumented things you can try:

    • Try using app-id and app-key, maybe the oxford API will accept hyphens
    • Maybe they’ll accept a standard Authentication header instead of separate id/keys. This is just a base64-encoded "id:key" string. I wrote code for doing this in roblox here. Try that instead of these two headers?
  • Host your own server that uses better-named headers and forwards them to oxford’s API. More complex but there are lots of online hosting options that would let you do this relatively cheaply.

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