fix select2 e2e test in phantomjs
fix select2 e2e test in phantomjs

Jinjiang/vue,cnchanning/vue,lizhiyao/vue,Kingwl/vue,cnchanning/vue,leemotive/vue,Hanks10100/vue,Hanks10100/vue,KingMario/vue,wushuyi/vue,Ddder-FE/vue,hanhongyuan/vue,hanhongyuan/vue,KingMario/vue,pramudaprakash/GITHUB,gebilaoxiong/vue,Kingwl/vue,KingMario/vue,vuejs/vue,posva/vue,vuejs/vue,Ddder-FE/vue,hanhongyuan/vue,vuejs/vue,sreesirisha/GITMidtermexam,Jinjiang/vue,greennyreborn/vue,greennyreborn/vue,optimizely/vue,greennyreborn/vue,KingMario/vue,pramudaprakash/GITHUB,vuejs/vue,pramudaprakash/GITHUB,gebilaoxiong/vue,posva/vue,leemotive/vue,Hanks10100/vue,lizhiyao/vue,sreesirisha/GITMidtermexam,posva/vue,Ddder-FE/vue,greennyreborn/vue,lizhiyao/vue,Hanks10100/vue,cnchanning/vue,hanhongyuan/vue,xueyaodeai/vue,xueyaodeai/vue,sreesirisha/GITMidtermexam,Kingwl/vue,lizhiyao/vue,wushuyi/vue,Jinjiang/vue,Kingwl/vue,leemotive/vue,posva/vue,Jinjiang/vue,xueyaodeai/vue,leemotive/vue,gebilaoxiong/vue,pramudaprakash/GITHUB,Ddder-FE/vue,sreesirisha/GITMidtermexam,xueyaodeai/vue