I am checking using the developer tools in Chrome. The first test gives me back a nice javascript object, I can browse it in the gui, but a bit hard to render here. The second just shows as a string, with or without content type header, depending on commenting that line in or out.

$.post('/cgi-bin/cp_json_test.pl', {},function (data) {console.dir(dat
+a) } );
> Object {readyState: 1, getResponseHeader: function, getAllResponseHe
+aders: function, setRequestHeader: function, overrideMimeType: functi
+on…}
> Object

$.post('/cgi-bin/cp_json_test.plx', {},function (data) {console.dir(da
+ta) } );
> Object {readyState: 1, getResponseHeader: function, getAllResponseHe
+aders: function, setRequestHeader: function, overrideMimeType: functi
+on…}
> Content-Type: application/json; charset=ISO-8859-1 {"is":"simple","t
+his":"test"}
[download]

IIS is version 6. I am so sorry about that :-(

I have .pl exgtensions running with perl.exe and .plx with perlis.dll

The reason I am trying to do this is mostly performance, and the challenge :-) I may give up though and return to plain perl.exe. I thought it looked like a nice way to get a bit more kick out of a heavily loaded server.

Cheers,
R.