Fixes #1870 -- allow empty bodies for difficult endpoints.
Fixes #1870 -- allow empty bodies for difficult endpoints.

feychenie/backbone,paulfalgout/backbone,ohbarye/backbone,jashkenas/backbone,zhoufan879/backbone,mrblueblue/backbone,vincent1988/backbone,tibic/backbone,howtolearntocode/backbone,sunday-star/backbone,tzkKrbys/backbone,nikolas/backbone,7213/backbone,liudianpeng/backbone,huanglp47/backbone,udhayam/backbone,zhangdimelody/backbone,wangdahoo/backbone,Connectlegendary/backbone,trizko/backbone,LovelyL25/backbone.js,elma-cao/backbone,zhangwei001/backbone,vin100bk/backbone,rashmisajjan/backbone,ThisIsManta/Backbone,cgvarela/backbone,jashkenas/backbone,moimikey/backbone,lastjune/backbone,guahanweb/backbone,FishbaitHarry/backbone,megawac/backbone,howtolearntocode/backbone,webapp/library,lujocom/backbone,jordansexton/backboner,amdjs/backbone,IsoldaJS/isolda-pubsub,premkumargithub/backbone,lastjune/backbone,IsoldaJS/isolda-models,ebsco/backbone,ppker/backbone,Krasnyanskiy/backbone,youprofit/backbone,Diwahars/backbone,wangcan2014/backbone,zgl2007dj/backbone,feychenie/backbone,jewsroch/backbone,oss-practice/backbone,dillonforrest/backbone-df,wangcan2014/backbone,virtru-components/backbone,gougouGet/backbone,braddunbar/backbone,ppker/backbone,gmaclennan/backbone,nvoron23/backbone,elancom/backbone,Aplopio/backbone,trizko/backbone,tadwhitaker/backbone,Niades/backbone,akre54/backbone,akre54/backbone,mpapp/backbone,tgriesser/backbone,wjb12/backbone,mmolinastudio/backbone,hugohua/backbone,amitpatange88/backbonejs,jungjung917/backbone,jstrimpel/backbone,moccen/backbone,pandoraui/backbone,moccen/backbone,youprofit/backbone,honger05/backbone,dak/backbone,alekskorolev/lightbones,jasoncbautista/backboneX,huanglp47/backbone,DannyDelott/backbone,Flip120/backbone,guigrpa/backbone,craigmichaelmartin/backbone,Diwahars/backbone,embarknow/backbone,maryrosecook/backbone-df,Khan/backbone,jmeas/backbone,ridixcr/backbone,zhangwei001/backbone,sueyeh/backbone,Sachin-Ganesh/backbone,Bug2014/backbone,ntgn81/backbone,tadwhitaker/backbone,udhayam/backbone,zdespolit/backbone,linalu1/backbone,webcoding/backbone,wangdahoo/backbone,kuychaco/backbone,cailong1028/backbone,neocotic/hipbone,heroazure/backbone,honger05/backbone,gmaclennan/backbone,JesseQin/backbone,wakanpaladin/mybackbone,zgl2007dj/backbone,Khan/backbone,7213/backbone,closeio/backbone,heroazure/backbone,neocotic/hipbone,moimikey/backbone,nikolas/backbone,ebsco/backbone,sumyfly/backbone,ereddate/backbone,wxmfront/backbone,dak/backbone,lujocom/backbone,pandoraui/backbone,Bug2014/backbone,streamablevideo/backbone,FishbaitHarry/backbone,ywenjinlin/backbone,jstrimpel/backbone,jungjung917/backbone,nvoron23/backbone,darrrk/backbone,rjz/boneless,darrrk/backbone,alekskorolev/lightbones,yawenl/backbone,sumyfly/backbone,kuychaco/backbone,elma-cao/backbone,Aplopio/backbone,sunday-star/backbone,dcheepurupalli/backbone,webapp/library,platinumazure/backbone,Connectlegendary/backbone,batigoal1980/backbone_example,guahanweb/backbone,batigoal1980/backbone_example,cailong1028/backbone,Flip120/backbone,jewsroch/backbone,componentizr/backbone,closeio/backbone,jridgewell/backbone,sitexa/backbone,GrimDerp/backbone,ywenjinlin/backbone,DannyDelott/backbone,ThiagoGarciaAlves/backbone,cgvarela/backbone,antoniogarrote/backbone,liudianpeng/backbone,wjb12/backbone,Aplopio/backbone,paulfalgout/backbone,timebackzhou/backbone,ridixcr/backbone,GerHobbelt/backbone,chyeh727/backbone,dillonforrest/backbone-df,JesseQin/backbone,Akkuma/backbone,yawenl/backbone,amitpatange88/backbonejs,Krasnyanskiy/backbone,luffy94608/backbone,tzkKrbys/backbone,craigmichaelmartin/backbone,GerHobbelt/backbone,getshuvo/backbone,leimd/backbone,vincent1988/backbone,getshuvo/backbone,zhangdimelody/backbone,timebackzhou/backbone,au-phiware/backbone,au-phiware/backbone,anhtholee/backbone,wushuyi/backbone,ohbarye/backbone,anhtholee/backbone,yuhualingfeng/backbone,zdespolit/backbone,luffy94608/backbone,FormidableLabs/backbone,wxmfront/backbone,Sachin-Ganesh/backbone,LovelyL25/backbone.js,leimd/backbone,yuhualingfeng/backbone,jmeas/backbone,sueyeh/backbone,linalu1/backbone,ThisIsManta/Backbone,fanhc019/backbone,aihua/backbone,fanhc019/backbone,Niades/backbone,wakanpaladin/mybackbone,Khan/backbone,npmcomponent/jashkenas-backbone,premkumargithub/backbone,dillonforrest/backbone-df,mmolinastudio/backbone,maryrosecook/backbone-df,gdi2290/backbone,embarknow/backbone,sitexa/backbone,ereddate/backbone,gougouGet/backbone,ThiagoGarciaAlves/backbone,rashmisajjan/backbone,elancom/backbone,webcoding/backbone,wushuyi/backbone,braddunbar/backbone,mrblueblue/backbone,aihua/backbone,GrimDerp/backbone,jridgewell/backbone,ntgn81/backbone,zhoufan879/backbone,dcheepurupalli/backbone,vin100bk/backbone,maryrosecook/backbone-df,gitterHQ/backbone,streamablevideo/backbone,platinumazure/backbone,chyeh727/backbone,tibic/backbone