Fix #89. Quote yield to avoid SyntaxError in Android browser
Fix #89. Quote yield to avoid SyntaxError in Android browser

tkirda/when,stevage/when,SourcePointUSA/when,caporta/when,DJDNS/when.js,ning-github/when,ning-github/when,SourcePointUSA/when,anthonyvia/when,mlennon3/when,caporta/when,frank-weindel/when,mlennon3/when,petkaantonov/when,anthonyvia/when,frank-weindel/when,tkirda/when,stevage/when