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Asked: 2026-05-10T15:42:01+00:00

This code is from Prototype.js . I’ve looked at probably 20 different tutorials, and

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This code is from Prototype.js. I’ve looked at probably 20 different tutorials, and I can’t figure out why this is not working. The response I get is null.

new Ajax.Request(/path/to / xml / file.xml, {    method: 'get',    contentType: 'application/xml',    onSuccess: function(transport) {       alert(transport.responseXML);    } });

If I change the responseXML to responseText, then it alerts to me the XML file as a string. This is not a PHP page serving up XML, but an actual XML file, so I know it is not the response headers.

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  1. If transport.responseXML is null but you have a value for transport.responseText then I believe it’s because it’s not a valid XML file.

    Edit: I just noticed that in our code here whenever we request an XML file we set the content type to ‘text/xml’. I have no idea if that makes a difference or not.

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