What was the problem? It's good to write it down so anyone searching for a similar problem and finding this thread can find the solution as well.
FYI I think how the updating works is described in Offline games in Construct 2
(Trying my best to be formal <img src="smileys/smiley4.gif" border="0" align="middle">)
You see Ashley...
f everything is set up right, the browser will save your entire game to disk after loading it for the first time. After that, if you load the game again, it loads from disk. Nothing is downloaded at all! Usually that means the game loads instantly as well. This means even if you're offline, you can still load the game and play.
Is a big problem, Because now when I update my game I can't just replace the c2runtime.js I have to name the other new one to c2runtime-0.1.75.js or whatever the version is, and then update my play.php page, Now even though that's no problem.. storing the c2runtime.js to load every time can be a really bad thing.
1) It will waste server bandwidth
2) It makes it annoying to update a game
3) Some people may have trouble like I did, And for people who don't know the answer, well... Goodluck!
This is fine, but the cache should delete itself if the browser get's closed and re-opened, or if you press Ctrl+F5 too!