Better error checking for clientauth
Better error checking for clientauth

vicki-c/heapster,burmanm/heapster,wulonghui/heapster,piosz/heapster,wulonghui/heapster,nlamirault/heapster,bluebreezecf/heapster,nlamirault/heapster,skytap/heapster,jfoy/heapster,vishh/heapster-1,krzyzacy/heapster,andyxning/heapster,Stackdriver/heapster,lavalamp/heapster,adfin/statster,liubog2008/heapster,krzyzacy/heapster,titilambert/heapster,apeeyush/heapster,dalanlan/heapster,digideskio/heapster,relh/heapster,mdshuai/heapster,adfin/statster,jackzampolin/heapster,saad-ali/heapster,lavalamp/heapster,mwielgus/heapster,johanneswuerbach/heapster,a-robinson/heapster,Huawei-PaaS/heapster,relh/heapster,jimmidyson/heapster,bruceauyeung/heapster,andyxning/heapster,Stackdriver/heapster,liubog2008/heapster,saiwl/heapster,mwielgus/heapster,afein/heapster,bruceauyeung/heapster,a-robinson/heapster,piosz/heapster,huangyuqi/heapster,luxas/heapster,luxas/heapster,whuwxl/heapster,ravihansa3000/heapster,mwringe/heapster,jackzampolin/heapster,whuwxl/heapster,taimir/heapster,Huawei-PaaS/heapster,naxhh/heapster,jimmidyson/heapster,vicki-c/heapster,afein/heapster,fzu-huang/heapster,johanneswuerbach/heapster,apeeyush/heapster,skytap/heapster,liuhewei/heapster,digideskio/heapster,titilambert/heapster,burmanm/heapster,shilpamayanna/heapster,fzu-huang/heapster,huangyuqi/heapster,thucatebay/heapster,ravihansa3000/heapster,saiwl/heapster,naxhh/heapster,aegixx/heapster,vishh/heapster-1,saad-ali/heapster,bluebreezecf/heapster,dalanlan/heapster,jfoy/heapster,jszczepkowski/heapster,thucatebay/heapster,jszczepkowski/heapster,AlmogBaku/heapster,taimir/heapster,mwringe/heapster,shilpamayanna/heapster,liuhewei/heapster,AlmogBaku/heapster,aegixx/heapster,mdshuai/heapster