DWR project used asynchronous, sometimes there will be failed to read input prompt box, my sun.
Online to find a solution, as follows:
At DWR's engine.js inside the code is as follows:
dwr.engine.defaultErrorHandler = function (message, ex) (
dwr.engine._debug ( "Error:" + ex.name + "," + ex.message, true);
if (message == null | | message == "") alert ( "A server error has occured. More information may be available in the console.");
/ / Ignore NS_ERROR_NOT_AVAILABLE if Mozilla is being narky
else if (message.indexOf ( "0x80040111")! = -1) dwr.engine._debug (message);
else alert (message);
Solution is: add judge. .
Filter failed to read input