JSInterpreter fail

[ruoying86]

function getsign(){

var o = new IviBlowFish("f10232b7bc5c7ae8f796c1332b27a18c", "e9044861170176cc", "d20890c22e02ed83").cmacbf("tg_UHAJQh3g{"method":"da.content.get","params":[133305,{"app_version":5913,"session":"a92726aa1616000842_1543986721-78407951ADA8tRkQ7jp5Lxf5w8nb6g","site":"s1698","uid":"91523.213977600","_url":"https://www.ivi.tv","adblock":0,"user_ab_bucket":5305}]}");

return o;
});
def parse_sig_js(jscode):
jsi = JSInterpreter(jscode)
initial_function = jsi.extract_function("test")
s="test"
res=initial_function(s)
return res

errormsg:
raise ExtractorError('Unsupported JS expression %r' % expr)
ExtractorError: Unsupported JS expression u'new IviBlowFish("f10232b7bc5c7ae8f796c1332b27a18c", "e9044861170176cc", "d20890c22e02ed83").cmacbf("tg_UHAJQh3g{\"method\":\"da.content.get\",\"params\":[133305,{\"app_version\":5913,\"session\":\"a92726aa1616000842_1543986721'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see https://yt-dl.org/update on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output

the version is the newest

[dstftw]

JSInterpreter is not a full-fledged JS engine but only support particular language subset. Use phantomjs.