Could not complete the operation due to error c00ce56e
问题 I've upgraded from rich faces 3.3 to rich faces 4.2 because ajax didn't work for IE9. Now it still not works. After receiving the Response IE gets an JS error "SCRIPT58734: Der Vorgang konnte aufgrund des folgenden Fehlers nicht fortgesetzt werden: c00ce56e." while trying data.responseText=request.responseText on jsf.js.html?ln=javax.faces&conversationContext=2, Line 1 Row 21747 I think it's because of an incorrecct HTTP header Content-Type: text/xml;charset=UTF8 should be Content-Type: text