Cross Domain and IE10

[f1hornet]

Hey
when I try to use this with IE10 (works great with ie11, chrome) I get an error:

SCRIPT5: Access is denied.
xapiwrapper.js, line 1342 character 13

This is the line it refers to:
xhr.open(ieModeRequest.method, ieModeRequest.url);

Any ideas how to fix this - having the course on a secure server makes no diffence.

Sorry - pressed submit before adding the error!

John

[creighton]

what's the error?

[f1hornet]

Hi Creighton - I updated my comment now

[f1hornet]

trying to connect to a WAX LRS: https://isl.waxlrs.com/TCAPI/

[creighton]

hmm.. ok. we'll try it out here and see what we can find.. sorry I don't have a quick answer for you

[f1hornet]

Thanks for your help... I reverted back to your example.html file as a simple example to try and debug the issue but I'm not making any progress. We are running it from a http connection to the https LRS but even moving the file to https made no difference. As I mentioned before it works perfectly in IE11 and Chrome but our client wants it on older browsers - even as far back as IE8! :(

I really appreciate any help you can provide.

[f1hornet]

Hi Tom,
I came up with a solution that seems to be working:

Change:
//If it's not cross domain or we're not using IE, use the usual XmlHttpRequest
if (!xDomainRequest || typeof(XDomainRequest) === 'undefined') {

To:

//If it's not cross domain or we're not using IE, use the usual XmlHttpRequest
var windowsVersionCheck = window.XDomainRequest && (window.XMLHttpRequest && new XMLHttpRequest().responseType === undefined);
if (!xDomainRequest || windowsVersionCheck === undefined || windowsVersionCheck===false) {

based on this article:
http://stackoverflow.com/questions/15460152/how-to-determine-whether-to-use-xmlhttprequest-or-xdomainrequest

Let me know if you think this will work

thanks

John

[ljwolford]

Hi John,

We tested it on our side and it appears to be working. Thank you for finding this bug and fixing it! I'll be creating a pull request to include it in the code.

[shigil]

Hi

I ran into a problem while using this API with IE10. The API was throwing invalid state error in IE 10 while trying to fetch statements.

Debugging further I realized that the issue was actually with the xhr.withCredentials in the ADL.XHR_request function. Moving it after xhr.open fixed the issue. Is it possible to raise a pull request to include it in the code?

xhr.open(method, url, callback != null);
xhr.withCredentials = withCredentials;