no transport error on Windows Phone 7

[mike@…]

an ajax request throws a 'no transport' error using PhoneGap and Windows Phone 7. To fix this we need to do a:

$.support.cors = true;

before the request. This might be related to the fact that in this situation:

parent.location.protocol == 'x-wmapp1:'

not file: or local: like on other devices

[dmethvin]

Since we just shipped 1.7 today we aren't going to be able to do any internal fix for a while, so the cors solution is fine. And I'm not sure that we should. Is the "x-wmapp1" protocol some standard name? If so it sure seems to be randomly chosen.

[mike@…]

I do agree that it is not a very high priority bug since there is a workaround the user can do, and I agree that Microsoft shouldn't be just making up their own protocol where local: or file: would work fine.

But I do think it should be eventually fixed since it would seem to be a very low risk fix and we gain consistently across all platforms. I have already seen a few posts of people running into this issue.

[purplecabbage@…]

I am dealing with this directly in PhoneGap code for WP7 Mango. The issue is a security access violation when using XHR to local files. The WP7 Silverlight WebBrowser component does not have a domain when running locally, so ALL local XHR requests fail. Not just a jQuery issue.

• Jesse

[jaubourg]

"$.support.cors = true;" is the way to go for now. Mobile browsers move too fast and too ectically for us to handle every single case.

[anonymous]

So do you think one programmer can use this "bug" for gain informations about other sites?

[Mike]

I disagree with closing this issue, we should have confidence that jQuery will work across all devices/browsers. This bug is very easily fixed in the jQuery code, it is a very low risk fix, and we gain consistently across all platforms.

This is not the old windows phone OS, this is the new windows 8 OS

[anonymous]

just one more bit of info, Windows Phone and Windows 8 desktop use 2 different protocols:

parent.location.protocol == 'x-wmapp1:' and parent.location.protocol == 'ms-appx:'

[MJHeijster]

With Windows Phone 8 the thrown error is NetworkError instead of No Transport.

My test code for both WP7 and WP8:

 $.ajax("http://localhost:8081/api.html", {

            async: false,
            contentType: "text/xml",
            data: body,
            type: "POST",
            success: function (data, textStatus, jqXHR) {
                console.log("request successful, body: " + data);
               //Code that should happen
            },
            error: function (jqXHR, textStatus, errorThrown) {
                console.log(textStatus + ": " + errorThrown);
              
            }
        });

Logged in Console: WP7: Log:"error: NetworkError" WP8: Log:"error: NetworkError"

If I put $.support.cors = true; in front of it, it works.