Dojo XHR将200 OK视为错误

Question

I use Dojo xhr to post some data to an ASP.NET MVC controller:

xhr.post("/MyController", {
       handleAs: "json",
       data: {
          contentIdentifier: 'abc123',
          language: 'en'
        }
     }).then(function (response) {
         console.log('Success.');
     }, function (err) {
         console.error(err);
     });

The controller returns a plain text result, and I can see the response is indeed 200 OK from the server.

However, the error handler is always triggered.

When outputting err to the console I get something like:

SyntaxError: Unexpected token S
message: "Unexpected token S"
response: { 
   options: TMP
   status: 200
   text: "Successfully pushed content to 1 instance(s)."

It seems to me the error is because it cannot parse the plain text response as JSON? Ie the first "S" in the word "Successfully" is what's breaking xhr ?

The content type for the response is text/plain

Answer 1

Doh.

The handleAs argument according to the Dojo docs:

The content handler to process the response payload with.

In other words, setting handleAs to "text" solved the problem.