Our project is using Ext-js, and sometimes will send several request to Rails. This will cause an error:
A copy of XX has been removed from the module tree...
This may be because Rails is responding to a request whilst it has to reload some module. The error disappears in production as I suspected.
I guess I can solve the problem by configuring Rails to make it respond to only ONE request at the same time, but I can't find any information about this.
Anyone know? Thanks!