Are there any cross-browser / cross-platform ways to parse XML files in Javascript?
Consider using jQuery.parseXML.
Note that old JQuery's code (pre 2.x) is essentially identical to one proposed in the accepted answer and can be found at http://code.jquery.com/jquery-1.9.1.js, partial version below:
// Cross-browser xml parsing
parseXML: function( data ) {
...
try {
if ( window.DOMParser ) { // Standard
tmp = new DOMParser();
xml = tmp.parseFromString( data , "text/xml" );
} else { // IE
xml = new ActiveXObject( "Microsoft.XMLDOM" );
xml.async = "false";
xml.loadXML( data );
}
} catch( e ) {
xml = undefined;
}
...
}
Starting JQuery 2.x code changed to skip ActiveX branch, if you still need it - use older version of JQuery or inline ActiveX parsing. Partial code from http://code.jquery.com/jquery-2.0.0.js:
// Cross-browser xml parsing
parseXML: function( data ) {
var xml, tmp;
.....
// Support: IE9
try {
tmp = new DOMParser();
xml = tmp.parseFromString( data , "text/xml" );
} catch ( e ) {
xml = undefined;
}
.....
},