Invalid HTML Characters
The Logi Server Engine may generate errors if it needs to read a string of characters as XML and that XML includes un-escaped, invalid XHTML characters.
A primary examples of this is when AJAX-style requests are used, such as Data Table sorting or paging (when Ajax Paging = True has been set), or use of an Action.Refresh Element that includes a Data Table or other data object. In these cases, the XML data may be indistinguishable from XML tags and reserved characters.
This can also happen when HTML is included in a report definition using the techniques discussed earlier.
The most common culprit in this scenario is the inclusion of unencoded "&" characters. In situations like those described above, the application will fail and produce an error message that looks like a parsing error.
Replacing the "&" character with "&"is often an easy solution.