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?


  • Is this a custom Visualforce page or the standard Salesforce UI?
    – Richard N
    Feb 1, 2013 at 19:06
  • Standard Salesforce UI
    – jpmonette
    Feb 1, 2013 at 19:58
  • Is this IE 8.0 by any chance? I think there was a known issue about this. Can you try with IE9 or other browsers?
    – Richard N
    Feb 1, 2013 at 21:50

2 Answers 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

  • :) IE 8 should be outlawed. I wonder how much heartache we will get when IE10 is released widely.
    – Richard N
    Feb 7, 2013 at 20:15

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