Using a suffix breaks steal in IE

We're using steal's suffix config to add a cachebuster when stealing dependencies. IE works fine when there isn't any suffix/cachebuster, but as soon as we add one IE stops loading modules properly: we get failures just trying to load canjs.

Here's code from a minimal test page I set up. This works fine in FF and Chrome, but it breaks in IE if steal.suffix is any nonempty value.

1. <script type="text/javascript">
2.     var steal = { suffix: 'foo' };
3. </script>
4. <script type="text/javascript" src="/js/steal/steal.js"></script>
5. <script type="text/javascript">
6.     steal('can', function(can) {
7.         console.log('CanJS was successfully stolen: ', can);
8.     });
9. </script>
   

IE does load the appropriate canjs files, but it behaves as though steal isn't passing "can" into steal's callbacks properly.

Is there a publicly-accessible steal.js which is hosted somewhere where it can steal canjs? I couldn't find one, so I wasn't able to make a fiddle for this.

I haven't yet figured out the root cause of this, or found any workarounds.