Legend missing when printing from web adaptor URL

[ErwinSoekianto]

Several people had this issue, legend is missing when printing , when using web adaptor URL (http://<serverName>/arcgis/rest/services/...)

but works fine in 6080 URL (http://<serverName>:6080/arcgis/rest/services/...)

This happened because there is normally limitation on large request by the web server (IIS) regular port 80.

There are two ways this issue is normally solved
- Query Request filtering settings of IIS 7 to increase the value of Maximum query string in IIS to 4096 <http://www.iis.net/configreference/system.webserver/security/requestfiltering/requestlimits>
- installing URLScan extension to the IIS. http://www.iis.net/downloads/microsoft/urlscan