annotations with youtube content will cause errors

[bartvde]

For instance: http://localhost:8001/examples/full-example.html#/maps/1162/data/

GET chrome-extension://boadgeojelhgndaghljhdicfkmllpafd/cast_sender.js net::ERR_FAILED
common.js:34 88
www-embed-player.js:164 GET chrome-extension://dliochdbjfkdbacpmhlcpmleaejidimm/cast_sender.js net::ERR_FAILED
www-embed-player.js:164 GET chrome-extension://hfaagokkkhdbgiakmmlclaapfelnkoah/cast_sender.js net::ERR_FAILED
www-embed-player.js:164 GET chrome-extension://fmfcbgogabcbclcofgocippekhfcmgfj/cast_sender.js net::ERR_FAILED
www-embed-player.js:164 GET chrome-extension://enhhojjnijigcajfphajepfemndkmdlo/cast_sender.js net::ERR_FAILED