When you call one of the REST APIs they can fail and return an error response which contains error strings.
Here is an example:
response:
200 {"error":{"code":400,"error":"invalid_request","error_description":"redirect_uri not specified","message":"invalid_request","details":[]}}
My question is whether or not the text, e.g. "invalid_request" and "redirect_uri not specified", are always returned in English. In other words, if I am communicating with ArcGIS Online using an French account then will I get French?