Is contenttype case-sensitive?

ContentType controls the type of Web output, but is it case-sensitive?

For example:

Context. Response.ContentType = "Application/json";

Context. Response.ContentType = "Application/json";

Is it the same?

Would have run completely without the problem code, foreground code:

$.ajax ({type: "POST",  
           Url:urlajax + "?) Operationtype=add ",  
           Data: $ (formid). Serialize (),  
           success:function (msg) {  
               var obj = Jquery.parsejson (msg );  
               if (obj. Issuccess = = True) {  
                   $.messager.alert (' hint ', obj. MSG, ' info ', saveokcallback);  
               }  
               else {  
                   $.messager.alert (' hint ', obj. MSG);  
               Enablebutton (True);  
           }  
       );

Background code:

Context. Response.ContentType = "Application/json";

When I change the background code into

Context. Response.ContentType = "Application/json";

, the front desk has a direct error!! This is the sentence!!

Jquery.parsejson (msg)

No issuccess properties!!!

Finally found out the reason is a case of a problem caused!!

It seems that ContentType is case-sensitive, but I did not find the relevant information!!

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