AJAX Plugin - "Content-Type" is overridden...or something.

Problem Description

The problem is with the AJAX-plugin. It seems calling "setRequestHeader" to change the "Content-Type" of the request doesn't work. It uses the default value of: "application/x-www-form-urlencoded" even if you change it to something else.

When looking at the code in the Plugin it does indeed seems like it should work, I even printed the headers and it seemed correct.

Steps to Reproduce Bug

• Add AJAX object to Layout
• In: On Layout Start, set the header: "Content-Type" to Value: "application/json"
• Make an AJAX request to some server
• Observe on the server that the Content-Type that is being sent is "application/x-www-form-urlencoded".

Observed Result

As seen above, the request header is overridden by the default one (or not being set at all)

Expected Result

"Content-Type" should be set to "application/json", but isn't.

Solution

Removing the following lines in the runtime.js of the AJAX -plugin (line 218-224), seem to fix this problem:

if (data_)
{
  if (request["setRequestHeader"])
  {
    request["setRequestHeader"]("Content-Type", "application/x-www-form-urlencoded");
  }
}[/code:fsszne24]

[b]Construct 2 Version ID[/b]
Release 190 (64-bit)

I made it disable the default application/x-www-form-urlencoded type if you use 'Set request header' to set Content-Type, so should be fixed in the next build.