There are two types of issues:
- The generator doesn't work at all, it doesn't even start. I have no idea what it is, no way to debug it. Probably something with Chrome (or network) setting.
- Normally the generator works, but in some cases it freezes and sometimes crashes the browser. It depends on generator parameters (seed, coast, walls etc). In the last update I tried to fix this one.
Please check this link. Does it work?