У вашего броузера проблема в совместимости с HTML5
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Hack Client:
1.15:
http://www.mediafire.com/file/o082qeg5v1ny093/xray-68-115.jar/file
1.15.1:
http://www.mediafire.com/file/2hyhsevwgml4xru/xray-68-1151.jar/file
Java SE Binary Download:
https://www.oracle.com/technetwork/java/javase/downloads/index.html
Once in run app type: %appdata%