Start the tomcat in debug mode (ie)
c:\alfresco\tomcat\bin>catalina.bat jpda start
Refer : http://mralfresco.blogspot.in/2012/09/how-to-enable-debugging-in-tomcat-6.html
Enable javascript debugging in alfresco share
Go to the below URL and click Enable button.
http://localhost:8080/share/page/api/javascript/debugger
Now you will get a new javascript debugging
window to debug the javascript.
![img1.jpg]()
Hope this helps !