$.ajax({ url: uriBase + "?" + $.param(params), // Request header beforeSend: function(xhrObj){ xhrObj.setRequestHeader("Content-Type","application/octet-stream"); xhrObj.setRequestHeader("Ocp-Apim-Subscription-Key", subscriptionKey); }, type: "POST", processData:false, contentType:false, // Request body data: imageObject, })