CODEWITHSUNDEEP
javascriptjquery
nimi
nimi

Reputation: 5507

jQuery Ajax call No element found issue

I am getting a javascript error on firefox 3.5, when trying to call an ajax method.

Please find the error below:

XML Parsing Error: no element found Location: moz-nullprincipal:{1a2c8133-f48f-4707-90f3-1a2b2f2d62e2} Line Number 1, Column 1:

^

this is my javascript function:

function Update(Id) {
    $.ajax({
        type: "GET",
        url: ROOT_URL + "/sevice/udates.svc/Update?Id=" + Id,
        success: function(response) {

        },
        async: false
    });
}

Upvotes: 22

Views: 29122

Answers (6)

Gabriele Petrioli
Gabriele Petrioli

Reputation: 196217

The ajax call expects XML back (perhaps due to bad guessing) and tries to parse it and fails if nothing is returned or it is not valid XML..

Use the dataType option to specify the format of the response.

From the comments it looks like some browsers cannot handle an no-content response. So, a workaround for such cases might be to return something from your service (even a single space).

Upvotes: 19

CharlesA
CharlesA

Reputation: 4350

I've come across an alternative cause of this - might help someone.

If you make a $.ajax request (in my case a PUT request) that returns a 200 header but no body content I've seen this same XML Parsing error message occur - even when the dataType is set to json.

(At least) two solutions work:

  • Make all API PUT requests return some content, or
  • Return a 204 'No Content' header instead (what I ended up doing)

Upvotes: 10

mimo
mimo

Reputation: 937

I fixed the problem by setting mimeType to "text/html"

Upvotes: 25

randall
randall

Reputation: 151

It's a known FireFox bug. https://bugzilla.mozilla.org/show_bug.cgi?id=547718 to quick fix this , you maybe can return an response with html structure(but no content).

Upvotes: 5

Stamen
Stamen

Reputation: 613

You need to send html document to the output (the output udates.svc in your case) . If you use ASP.NET, you could do the following:

Response.Clear();
Response.Write("<html xmlns=”http://www.w3.org/1999/xhtml”>");
Response.Write("<head><title></title></head>");
Response.Write("<body>");
Response.Write("your output");
Response.Write("</body>");
Response.Write("</html>");
Response.ContentType = "text/HTML";
Response.End();

Upvotes: 0

Teja Kantamneni
Teja Kantamneni

Reputation: 17482

async is also part of options. Also specify the dataType as xml

function Update(Id) {
    $.ajax({
        type: "GET",
        async: false,
        dataType: "XML",
        url: ROOT_URL + "/sevice/udates.svc/Update?Id=" + Id,
        success: function(response) {

        }
    });
}

Upvotes: 0

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