javascript - XMLHttpRequest.getResponseHeader() returns null -


i've created custom mime type called application/x-mytype extension .mytype following this link. then, created file in server named test.mytype , i'm trying it's content-type via xmlhttprequest looks browser cannot detect it.

var xmlhttp; if (window.xmlhttprequest) {// code ie7+, firefox, chrome, opera, safari     xmlhttp = new xmlhttprequest(); } else {     xmlhttp = new activexobject("microsoft.xmlhttp"); }  xmlhttp.open("get", "https://{myserver}/test.mytype", true); xmlhttp.send(null);  xmlhttp.onreadystatechange = function (oevent) {     if(xmlhttp.readystate==4) {         var contenttype = xmlhttp.getresponseheader('content-type');         console.log(contenttype); // prints null          if(contenttype === 'application/x-mytype') {             // never arrives here         }      }  };  

if @ "file type" via windows explorer, can see custom type, looking @ windows registries. have set else or browsers aren't supposed identify custom mime type?


Comments

Popular posts from this blog

python - Healpy: From Data to Healpix map -

c - Bitwise operation with (signed) enum value -

xslt - Unnest parent nodes by child node -