Fix a dynamic borrow failure with iframes
Fix a dynamic borrow failure with iframes

mt2d2/servo,s142857/servo,samfoo/servo,RenaudParis/servo,ConnorGBrewster/servo,ConnorGBrewster/servo,chotchki/servo,zhangjunlei26/servo,KiChjang/servo,KiChjang/servo,KiChjang/servo,nnethercote/servo,aweinstock314/servo,caldwell/servo,brendandahl/servo,paulrouget/servo,emilio/servo,bfrohs/servo,canaltinova/servo,vks/servo,juzer10/servo,rixrix/servo,dsandeephegde/servo,SimonSapin/servo,GyrosOfWar/servo,tafia/servo,froydnj/servo,evilpie/servo,canaltinova/servo,peterjoel/servo,zhangjunlei26/servo,steveklabnik/servo,caldwell/servo,larsbergstrom/servo,karlito40/servo,indykish/servo,walac/servo,WriterOfAlicrow/servo,zhangjunlei26/servo,luniv/servo,ryancanhelpyou/servo,dmarcos/servo,GreenRecycleBin/servo,juzer10/servo,DominoTree/servo,seanmonstar/servo,saneyuki/servo,wpgallih/servo,wartman4404/servo,tempbottle/servo,walac/servo,nerith/servo,tempbottle/servo,fiji-flo/servo,jdramani/servo,fiji-flo/servo,zentner-kyle/servo,RenaudParis/servo,tschneidereit/servo,karlito40/servo,jlegendary/servo,zhangjunlei26/servo,tafia/servo,runarberg/servo,eddyb/servo,fiji-flo/servo,s142857/servo,upsuper/servo,kindersung/servo,hyowon/servo,CJ8664/servo,boghison/servo,splav/servo,jgraham/servo,notriddle/servo,j3parker/servo,fiji-flo/servo,aweinstock314/servo,WriterOfAlicrow/servo,jimberlage/servo,mrobinson/servo,rentongzhang/servo,jgraham/servo,upsuper/servo,echochamber/servo,dhananjay92/servo,pyecs/servo,evilpie/servo,pyfisch/servo,huonw/servo,cbrewster/servo,caldwell/servo,juzer10/servo,mdibaiee/servo,emilio/servo,walac/servo,mattnenterprise/servo,rentongzhang/servo,ConnorGBrewster/servo,j3parker/servo,deokjinkim/servo,jlegendary/servo,srbhklkrn/SERVOENGINE,CJ8664/servo,seanmonstar/servo,thiagopnts/servo,caldwell/servo,mt2d2/servo,anthgur/servo,deokjinkim/servo,GreenRecycleBin/servo,saratang/servo,Adenilson/prototype-viewing-distance,splav/servo,larsbergstrom/servo,youprofit/servo,deokjinkim/servo,ruud-v-a/servo,bjwbell/servo,aidanhs/servo,avadacatavra/servo,upsuper/servo,saneyuki/servo,steveklabnik/servo,zentner-kyle/servo,Shraddha512/servo,nnethercote/servo,peterjoel/servo,jgraham/servo,zentner-kyle/servo,bjwbell/servo,AnthonyBroadCrawford/servo,saratang/servo,szeged/servo,jdramani/servo,dati91/servo,fiji-flo/servo,evilpie/servo,tschneidereit/servo,boghison/servo,dmarcos/servo,mukilan/servo,bfrohs/servo,saneyuki/servo,tafia/servo,mattnenterprise/servo,mdibaiee/servo,SimonSapin/servo,dmarcos/servo,DominoTree/servo,seanmonstar/servo,samfoo/servo,paulrouget/servo,nerith/servo,echochamber/servo,pyecs/servo,snf/servo,s142857/servo,WriterOfAlicrow/servo,emilio/servo,pyfisch/servo,indykish/servo,juzer10/servo,larsbergstrom/servo,mattnenterprise/servo,Adenilson/prototype-viewing-distance,eddyb/servo,boghison/servo,runarberg/servo,pgonda/servo,meh/servo,nnethercote/servo,paulrouget/servo,notriddle/servo,upsuper/servo,jgraham/servo,tempbottle/servo,dhananjay92/servo,shrenikgala/servo,indykish/servo,thiagopnts/servo,deokjinkim/servo,Adenilson/prototype-viewing-distance,shrenikgala/servo,ryancanhelpyou/servo,g-k/servo,A-deLuna/servo,avadacatavra/servo,runarberg/servo,nerith/servo,runarberg/servo,echochamber/servo,saratang/servo,kindersung/servo,jimberlage/servo,DominoTree/servo,caldwell/servo,aweinstock314/servo,dmarcos/servo,huonw/servo,mbrubeck/servo,g-k/servo,peterjoel/servo,pgonda/servo,A-deLuna/servo,luniv/servo,DominoTree/servo,youprofit/servo,jlegendary/servo,indykish/servo,nerith/servo,emilio/servo,larsbergstrom/servo,nick-thompson/servo,snf/servo,mukilan/servo,nrc/servo,notriddle/servo,saratang/servo,CJ8664/servo,juzer10/servo,mukilan/servo,canaltinova/servo,rnestler/servo,pyfisch/servo,mukilan/servo,Shraddha512/servo,dmarcos/servo,wpgallih/servo,deokjinkim/servo,echochamber/servo,mbrubeck/servo,dsandeephegde/servo,ruud-v-a/servo,jgraham/servo,WriterOfAlicrow/servo,nick-thompson/servo,mrobinson/servo,samfoo/servo,cbrewster/servo,AnthonyBroadCrawford/servo,canaltinova/servo,AnthonyBroadCrawford/servo,bfrohs/servo,nnethercote/servo,codemac/servo,paulrouget/servo,upsuper/servo,karlito40/servo,canaltinova/servo,vks/servo,KiChjang/servo,walac/servo,nrc/servo,brendandahl/servo,nrc/servo,WriterOfAlicrow/servo,snf/servo,ConnorGBrewster/servo,sadmansk/servo,RenaudParis/servo,rixrix/servo,thiagopnts/servo,akosel/servo,nnethercote/servo,echochamber/servo,tempbottle/servo,zhangjunlei26/servo,akosel/servo,mrobinson/servo,bfrohs/servo,tafia/servo,nnethercote/servo,rnestler/servo,splav/servo,notriddle/servo,shrenikgala/servo,chotchki/servo,jdramani/servo,DominoTree/servo,peterjoel/servo,akosel/servo,nnethercote/servo,cbrewster/servo,AnthonyBroadCrawford/servo,nick-thompson/servo,sadmansk/servo,echochamber/servo,rixrix/servo,rixrix/servo,dvberkel/servo,shrenikgala/servo,rentongzhang/servo,huonw/servo,Shraddha512/servo,kindersung/servo,ConnorGBrewster/servo,mbrubeck/servo,pgonda/servo,dati91/servo,srbhklkrn/SERVOENGINE,dvberkel/servo,nerith/servo,dhananjay92/servo,KiChjang/servo,GreenRecycleBin/servo,saneyuki/servo,dsandeephegde/servo,nick-thompson/se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