load youtube player API with schema-relative URL
load youtube player API with schema-relative URL

NUKnightLab/TimelineJS,ryekee/TimelineJS,NUKnightLab/TimelineJS,eldabbagh/TimelineJS,cweems/tc_timeline,LauraHilliger/TimelineJS,anxintiancai/TimelineJS,wangjun/TimelineJS,anxintiancai/TimelineJS,wangjun/TimelineJS,landsurveyorsunited/TimelineJS,landsurveyorsunited/TimelineJS,matt-edgedesign/Timelinejs,stea4lth/TimelineJS,deenjohn/TimelineJS,NUKnightLab/TimelineJS,stea4lth/TimelineJS,matt-edgedesign/Timelinejs,james-logan/TimelineJS,angeliaz/TimelineJS,LauraHilliger/TimelineJS,ryekee/TimelineJS,ycaihua/TimelineJS,djaney/TimelineJS,noikiy/TimelineJS,pom95/timeline,noikiy/TimelineJS,cweems/tc_timeline,1modm/TimelineJS,anxintiancai/TimelineJS,wangjun/TimelineJS,stea4lth/TimelineJS,cweems/api-timeline-js,james-logan/TimelineJS,zstao/TimelineJS,cweems/api-timeline-js,CrossLead/TimelineJS,azeemmufti/TimelineJS,noikiy/TimelineJS,CrossLead/TimelineJS,JoaquinSiabra/TimelineJS,JoaquinSiabra/TimelineJS,james-logan/TimelineJS,ycaihua/TimelineJS,angeliaz/TimelineJS,eldabbagh/TimelineJS,zstao/TimelineJS,1modm/TimelineJS,djaney/TimelineJS,ryekee/TimelineJS,azeemmufti/TimelineJS,deenjohn/TimelineJS,zstao/TimelineJS,pom95/timeline,LauraHilliger/TimelineJS,pom95/timeline,djaney/TimelineJS,1modm/TimelineJS,landsurveyorsunited/TimelineJS,ycaihua/TimelineJS,deenjohn/TimelineJS,matt-edgedesign/Timelinejs,JoaquinSiabra/TimelineJS