When I try to click "Sign up" with a completed sign up form, I get no response, and the following errors in the javascript console:
[Error] Error: Can't find variable: TextEncoder
Writer@http://www.dominion.games/private-beta/js/dominion-webclient-body-0.12.10b.min.js:1:16858
createAccount@http://www.dominion.games/private-beta/js/dominion-webclient-body-0.12.10b.min.js:19:25360
send@http://www.dominion.games/private-beta/js/dominion-webclient-body-0.12.10b.min.js:20:12619
send@http://www.dominion.games/private-beta/js/dominion-webclient-body-0.12.10b.min.js:20:13793
fn
t@http://www.dominion.games/private-beta/js/dominion-webclient-head-0.12.10b.min.js:2:31594
r@http://www.dominion.games/private-beta/js/dominion-webclient-head-0.12.10b.min.js:5:12431
$apply@http://www.dominion.games/private-beta/js/dominion-webclient-head-0.12.10b.min.js:3:9759
http://www.dominion.games/private-beta/js/dominion-webclient-head-0.12.10b.min.js:5:12488
Fe@http://www.dominion.games/private-beta/js/dominion-webclient-head-0.12.10b.min.js:1:18253
n@http://www.dominion.games/private-beta/js/dominion-webclient-head-0.12.10b.min.js:1:18197
i@http://www.dominion.games/private-beta/js/dominion-webclient-head-0.12.10b.min.js:18:4956 – undefined
(anonymous function) (dominion-webclient-head-0.12.10b.min.js:18:2225)
(anonymous function) (dominion-webclient-head-0.12.10b.min.js:2:13337)
r (dominion-webclient-head-0.12.10b.min.js:18:31362)
$apply (dominion-webclient-head-0.12.10b.min.js:3:9798)
(anonymous function) (dominion-webclient-head-0.12.10b.min.js:5:12489)
Fe (dominion-webclient-head-0.12.10b.min.js:1:18254)
n (dominion-webclient-head-0.12.10b.min.js:1:18198)
i (dominion-webclient-head-0.12.10b.min.js:18:4957)
[Error] Failed to load resource: the server responded with a status of 429 (TOO MANY REQUESTS) (store, line 0)
OS: Mac OS X 10.11.6 (15G1108)
Browser: Safari 10.0 (11602.1.50.0.10)
edited to add: for the record, I was able to sign up and log in on Chromium Version 45.0.2454.101 (64-bit), but even after signing up I'm not able to log in on Safari.
Sorry, safari isn't really supported atm.