I had to update code to fix this issue for me.

LIne 548 in jquery-1.9.1.js

Error in IE 10: Invalid character

Added check for null & undefined before calling window.JSON

if (data === null || data === undefined) {

return data;

}

// Attempt to parse using the native JSON parser first

if ( window.JSON && window.JSON.parse ) {

return window.JSON.parse( data );

}

...