We want to use Google based Open Sans font for our reports in JS.
I added them suing the Preferences->JS->Fonts menu and it seems to work fine when previewing in Studio.
Then I put the export jar file for the font family in C:\Jaspersoft\jasperreports-server-5.5\apache-tomcat\webapps\jasperserver-pro\WEB-INF\lib directory
But within JS Reports Server, the font doesn't appear (it shows Times New Roman instead).
I have attached a zip file with the font jar file, screenshot from JS Studio and screenshot in JS Reports Server.