I was taking a look at the javascript files for some of my Greasemonkey tools, and I noticed I kept getting the same errors on history playbacks.

Error: darkDivs.get(i) has no properties
Source File: http://weewar.com/inc/mapObject.js
Line: 355

I looked at the code and thought it might just need  a try/catch around it, but then I noticed what might be a typo.  There's only one equal sign in the 'if' statement in lines 346 and 355.

Anyway, I don't have the time with the code that others do, so I'll quit guessing what the problem might be.  I know that a lot of the players are wishing the replays worked more reliably, so I thought I'd at least report the error message.

Great sleuthing work, straind.  I myself have never delved into their JS yet.  Here's to hoping they can fix the easy bugs soon (if any).