NSMutableURLRequest custom header causing request to fail

Question

I am making a GET request for JSON data from a server that requires custom headers. The server responds with accurate response codes when I add the authentication header but fails during the custom header.

This -

[request addValue:utcDate forHTTPHeaderField:@"X-Custom-Date"];

causes the request to not receive a response from the server.

I can add the identical headers in a curl command and get a response so it is something particular to the NSMutableURLRequest class.

Has anyone encounter this issue?

What is utcDate? A string? Have you checked what is actually sent? Server log? — Wain
– Wain, Commented Oct 12, 2013 at 8:00
I recommend using tcpdump on the command line to confirm that what you're sending is what you expect, and to see if you get any response from the server or not. — tjarratt
– tjarratt, Commented Oct 13, 2013 at 21:36

mkeathley · Accepted Answer · 2013-10-29 15:49:48Z

2

The HTTP header in the above question was copied from an PDF API document. Apparently it pasted in a character that is not displayed and caused the request to fail.

You can copy the above request line into a program like vi and you will find the additional character before the X.

I have been searching for a way to force Xcode to display ALL characters without success.

answered Oct 29, 2013 at 15:49

mkeathley

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