Yahoo Bid Adapter: Support IE11 -> includes to indexOf (#7627)
Yahoo Bid Adapter: Support IE11 -> includes to indexOf (#7627)

* includes to indexOf

* lint
PWyrembak/Prebid.js,gumgum/Prebid.js,PubWise/Prebid.js,gumgum/Prebid.js,PubWise/Prebid.js,Niksok/Prebid.js,prebid/Prebid.js,PWyrembak/Prebid.js,HuddledMasses/Prebid.js,prebid/Prebid.js,PWyrembak/Prebid.js,prebid/Prebid.js,Niksok/Prebid.js,ImproveDigital/Prebid.js,ImproveDigital/Prebid.js,PubWise/Prebid.js,HuddledMasses/Prebid.js,Niksok/Prebid.js,ImproveDigital/Prebid.js,gumgum/Prebid.js,HuddledMasses/Prebid.js