Load external assets with https in select2 example (#3053)
Load external assets with https in select2 example (#3053)

Otherwise it doesn't work if the page is loaded with http.
cnchanning/vue,wushuyi/vue,leemotive/vue,sreesirisha/GITMidtermexam,hanhongyuan/vue,Jinjiang/vue,Jinjiang/vue,Kingwl/vue,posva/vue,vuejs/vue,Hanks10100/vue,hanhongyuan/vue,xueyaodeai/vue,Ddder-FE/vue,lizhiyao/vue,vuejs/vue,lizhiyao/vue,posva/vue,Jinjiang/vue,Ddder-FE/vue,Ddder-FE/vue,Kingwl/vue,hanhongyuan/vue,optimizely/vue,vuejs/vue,pramudaprakash/GITHUB,KingMario/vue,KingMario/vue,Hanks10100/vue,pramudaprakash/GITHUB,Kingwl/vue,leemotive/vue,sreesirisha/GITMidtermexam,cnchanning/vue,sreesirisha/GITMidtermexam,Kingwl/vue,hanhongyuan/vue,greennyreborn/vue,xueyaodeai/vue,posva/vue,pramudaprakash/GITHUB,greennyreborn/vue,greennyreborn/vue,xueyaodeai/vue,posva/vue,pramudaprakash/GITHUB,cnchanning/vue,sreesirisha/GITMidtermexam,gebilaoxiong/vue,leemotive/vue,Hanks10100/vue,gebilaoxiong/vue,vuejs/vue,Jinjiang/vue,xueyaodeai/vue,wushuyi/vue,lizhiyao/vue,leemotive/vue,gebilaoxiong/vue,Ddder-FE/vue,KingMario/vue,KingMario/vue,Hanks10100/vue,lizhiyao/vue,greennyreborn/vue