Prevent AJAX POST for multipart forms (e.g. file uploads).
Prevent AJAX POST for multipart forms (e.g. file uploads).

Fixes bug 962670.

Change-Id: I4a2da4f86687088aa0ceed20159ae413d81c3c9a

Metaswitch/horizon,promptworks/horizon,zouyapeng/horizon,bac/horizon,maestro-hybrid-cloud/horizon,mrunge/horizon_lib,FNST-OpenStack/horizon,RudoCris/horizon,spring-week-topos/horizon-week,flochaz/horizon,Hodorable/0602,luhanhan/horizon,yjxtogo/horizon,99cloud/keystone_register,mandeepdhami/horizon,agileblaze/OpenStackTwoFactorAuthentication,icloudrnd/automation_tools,liyitest/rr,tanglei528/horizon,yanheven/console,gochist/horizon,henaras/horizon,citrix-openstack-build/horizon,citrix-openstack-build/horizon,gerrive/horizon,Mirantis/mos-horizon,wangxiangyu/horizon,netscaler/horizon,philoniare/horizon,dan1/horizon-x509,watonyweng/horizon,CiscoSystems/horizon,Hodorable/0602,kfox1111/horizon,ging/horizon,nvoron23/avos,openstack/horizon,anthonydillon/horizon,vbannai/disk-qos-horizon,tuskar/tuskar-ui,FNST-OpenStack/horizon,ChameleonCloud/horizon,newrocknj/horizon,LabAdvComp/tukey_portal,CiscoSystems/avos,j4/horizon,Mirantis/mos-horizon,henaras/horizon,blueboxgroup/horizon,karthik-suresh/horizon,icloudrnd/automation_tools,sandvine/horizon,Mirantis/mos-horizon,netscaler/horizon,xinwu/horizon,CiscoSystems/avos,redhat-openstack/horizon,xme1226/horizon,Daniex/horizon,xme1226/horizon,RudoCris/horizon,r-icarus/openstack_microserver,ikargis/horizon_fod,99cloud/keystone_register,doug-fish/horizon,mrunge/openstack_horizon,saydulk/horizon,rdo-management/tuskar-ui,vbannai/disk-qos-horizon,Daniex/horizon,asomya/test,noironetworks/horizon,wolverineav/horizon,noironetworks/horizon,icloudrnd/automation_tools,gerrive/horizon,vladryk/horizon,ikargis/horizon_fod,LabAdvComp/tukey_portal,99cloud/keystone_register,tsufiev/horizon,coreycb/horizon,zouyapeng/horizon,dan1/horizon-proto,wangxiangyu/horizon,karthik-suresh/horizon,idjaw/horizon,damien-dg/horizon,tellesnobrega/horizon,izadorozhna/dashboard_integration_tests,dan1/horizon-proto,takeshineshiro/horizon,yjxtogo/horizon,Daniex/horizon,savi-dev/horizon,endorphinl/horizon-fork,gochist/horizon,davidcusatis/horizon,vladryk/horizon,pranavtendolkr/horizon,spring-week-topos/horizon-week,mrunge/openstack_horizon,saydulk/horizon,occ-data/tukey-portal,yjxtogo/horizon,promptworks/horizon,xme1226/horizon,mrunge/horizon,pranavtendolkr/horizon,davidcusatis/horizon,zouyapeng/horizon,opencloudconsortium/tukey-portal,CiscoSystems/avos,occ-data/tukey-portal,mrunge/openstack_horizon,karthik-suresh/horizon,Mirantis/mos-horizon,kaiweifan/horizon,endorphinl/horizon,openstack/horizon,Tesora/tesora-horizon,kaiweifan/horizon,django-leonardo/horizon,bigswitch/horizon,yeming233/horizon,Solinea/horizon,mrunge/horizon_lib,redhat-openstack/horizon,takeshineshiro/horizon,vladryk/horizon,mdavid/horizon,savi-dev/horizon,mdavid/horizon,ging/horizon,Dark-Hacker/horizon,tqtran7/horizon,Metaswitch/horizon,icloudrnd/automation_tools,nvoron23/avos,bac/horizon,spring-week-topos/horizon-week,flochaz/horizon,rdo-management/tuskar-ui,tuskar/tuskar-ui,Metaswitch/horizon,BiznetGIO/horizon,blueboxgroup/horizon,JioCloud/horizon,izadorozhna/dashboard_integration_tests,ging/horizon,openstack-ja/horizon,bac/horizon,Tesora/tesora-horizon,NCI-Cloud/horizon,VaneCloud/horizon,takeshineshiro/horizon,orbitfp7/horizon,coreycb/horizon,FNST-OpenStack/horizon,rdo-management/tuskar-ui,redhat-cip/horizon,Hodorable/0602,davidcusatis/horizon,newrocknj/horizon,wangxiangyu/horizon,Dark-Hacker/horizon,Hodorable/0602,nvoron23/avos,tqtran7/horizon,NeCTAR-RC/horizon,LabAdvComp/tukey_portal,tellesnobrega/horizon,ikargis/horizon_fod,asomya/test,endorphinl/horizon-fork,yanheven/console,dan1/horizon-proto,ging/horizon,VaneCloud/horizon,yeming233/horizon,coreycb/horizon,netscaler/horizon,rdo-management/tuskar-ui,bigswitch/horizon,CiscoSystems/avos,watonyweng/horizon,django-leonardo/horizon,j4/horizon,sandvine/horizon,tanglei528/horizon,NeCTAR-RC/horizon,NeCTAR-RC/horizon,kfox1111/horizon,Solinea/horizon,aaronorosen/horizon-congress,Metaswitch/horizon,noironetworks/horizon,saydulk/horizon,mandeepdhami/horizon,sandvine/horizon,anthonydillon/horizon,endorphinl/horizon,yjxtogo/horizon,django-leonardo/horizon,Solinea/horizon,tsufiev/horizon,gerrive/horizon,Frostman/eho-horizon,tsufiev/horizon,ChameleonCloud/horizon,savi-dev/horizon,tellesnobrega/horizon,eayunstack/horizon,anthonydillon/horizon,henaras/horizon,maestro-hybrid-cloud/horizon,1ukash/horizon,asomya/test,django-leonardo/horizon,liyitest/rr,philoniare/horizon,VaneCloud/horizon,yeming233/horizon,dan1/horizon-proto,tqtran7/horizon,noironetworks/horizon,kfox1111/horizon,NCI-Cloud/horizon,CiscoSystems/horizon,redhat-openstack/horizon,vbannai/disk-qos-horizon,dan1/horizon-x509,pranavtendolkr/horizon,redhat-cip/horizon,tqtran7/horizon,CiscoSystems/horizon,orbitfp7/horizon,flochaz/horizon,JioCloud/horizon,tanglei528/horizon,1ukash/horizon,zouyapeng/horizon,wolverineav/horizon,sandvine/horizon,openstack/horizon,bigswitch/horizon,luhanhan/horizon,karthik-suresh/horizon,ChameleonCloud/horizon,r-icarus/openstack_microserver,pranavtendolkr/horizon,JioCloud/horizon,occ-data/tukey-portal,redhat-cip/horizon,aaronorosen/horizon-congress,1ukash/horizon,orbitfp7/horizon,xinwu/horizon,damien-dg/horizon,froyobin/horizon,dan1/horizon-x509,nvoron23/avos,NCI-Cloud/horizon,eayunstack/horizon,redhat-openstack/horizon,FNST-OpenStack/horizon,blueboxgroup/horizon,agileblaze/OpenStackTwoFactorAuthentication,agileblaze/OpenStackTwoFactorAuthentication,tsufiev/horizon,henaras/horizon,damien-dg/horizon,mrunge/horizon,idjaw/horizon,endorphinl/horizon,liyitest/rr,orbitfp7/horizon,promptworks/horizon,Dark-Hacker/horizon,endorphinl/horizon,Daniex/horizon,mdavid/horizon,Tesora/tesora-horizon,doug-fish/horizon,luhanhan/horizon,RudoCris/horizon,opencloudconsortium/tukey-portal,vladryk/horizon,yanheven/console,aaronorosen/horizon-congress,philoniare/horizon,openstack/horizon,tellesnobrega/horizon,ChameleonCloud/horizon,opencloudconsortium/tukey-portal,bac/horizon,BiznetGIO/horizon,newrocknj/horizon,saydulk/horizon,wolverineav/horizon,kaiweifan/horizon,takeshineshiro/horizon,j4/horizon,idjaw/horizon,watonyweng/horizon,xinwu/horizon,NCI-Cloud/horizon,newrocknj/horizon,kfox1111/horizon,Tesora/tesora-horizon,NeCTAR-RC/horizon,openstack-ja/horizon,rickerc/horizon_audit,r-icarus/openstack_microserver,gochist/horizon,doug-fish/horizon,Frostman/eho-horizon,LabAdvComp/tukey_portal,xinwu/horizon,maestro-hybrid-cloud/horizon,flochaz/horizon,mrunge/horizon,idjaw/horizon,mandeepdhami/horizon,coreycb/horizon,mandeepdhami/horizon,maestro-hybrid-cloud/horizon,VaneCloud/horizon,luhanhan/horizon,rickerc/horizon_audit,citrix-openstack-build/horizon,eayunstack/horizon,agileblaze/OpenStackTwoFactorAuthentication,dan1/horizon-x509,endorphinl/horizon-fork,gerrive/horizon,redhat-cip/horizon,davidcusatis/horizon,openstack-ja/horizon,yeming233/horizon,wolverineav/horizon,promptworks/horizon,blueboxgroup/horizon,BiznetGIO/horizon,Dark-Hacker/horizon,anthonydillon/horizon,damien-dg/horizon,Frostman/eho-horizon,RudoCris/horizon,tuskar/tuskar-ui,watonyweng/horizon,j4/horizon,bigswitch/horizon,mrunge/horizon_lib,philoniare/horizon,wangxiangyu/horizon,doug-fish/horizon,froyobin/horizon,froyobin/horizon,endorphinl/horizon-fork,CiscoSystems/horizon,BiznetGIO/horizon,liyitest/rr,mdavid/horizon,rickerc/horizon_audit,Solinea/horizon