Fix compability with Polymer (#141)
Fix compability with Polymer (#141)

* Annotation widget

* fix compability with Polymer

FNNDSC/vjs,FNNDSC/vjs,FNNDSC/ami,FNNDSC/ami,chenkaiC4/ami,chenkaiC4/ami,FNNDSC/vjs,FNNDSC/ami,FNNDSC/ami