Lookup displaying JavaScript error (Internet Explorer)

Question

One of our user is receiving a JS alert when filling a lookup (from a custom object).

error: {
    faultcode: 'soapenv:Client',
    faultstring: 'Attribute "xmlns" bound to namespace "http://www.w3.org/2000/xmlns/" was already specified for element "query".',
}

The custom objet is really standard, no custom JavaScript, nothing. The user is using Internet Explorer. I think the error is triggered when there's a request sent to display a list of suggestion in the small popup (under the lookup).

Does anybody know how to fix this?

Thanks!

Answer 1

Seems to be a known issue with IE8 from what I have seen.

Some relevant links from the force.com boards.

http://boards.developerforce.com/t5/Apex-Code-Development/Problems-with-Enhanced-Lists-and-calling-Apex-from-Button/td-p/176150

http://boards.developerforce.com/t5/Other-Salesforce-Applications/AJAX-8-0-error-Attribute-quot-xmlns-quot-was-already-specified/td-p/36381

http://boards.developerforce.com/t5/Apex-Code-Development/Problems-with-Enhanced-Lists-and-calling-Apex-from-Button/td-p/176150

http://boards.developerforce.com/t5/Other-Salesforce-Applications/AJAX-8-0-error-Attribute-quot-xmlns-quot-was-already-specified/td-p/36381

http://boards.developerforce.com/t5/General-Development/Javascript-button-error-Attribute-was-already-specified-for/td-p/253905

http://boards.developerforce.com/t5/Other-Salesforce-Applications/namespace-quot-already-bound-quot-problem/td-p/38061

Answer 2

;-) ;-) this can be fixed by installing Chrome Frame for IE and adding the registry key/value string:

OptInUrls = * inside HKEY_CURRENT_USER\Software\Google\ChromeFrame