I have a C# string like this "example\rbreak"
After concerting it with HttpUtility.UrlEncode("example\rbreak") it will be converted to:
but if I like to add the task I get a error.
4 : You didn't specify any tasks to add/edit/delete.
\r should not end up encoded as %0d. This is interpreting it as a single character, which would normally be true, but since it is wrapped in a JSON object, you actually need to treat it as a two character string, which would get encoded as %5Cr.
By the way, I hope that wasn't a real key, because otherwise you gave everyone access to that account for 4 hours.