Fixes http headers in casper.open
Fixes http headers in casper.open

Original http headers should be set only after the
query append, not immediately after calling webpage.openUrl.
The request initialization may take time, and so customHeaders
are not send because they are erased by the original value
before the request initialization. (at least in Gecko)

jjyycchh/casperjs,RobertoMalatesta/casperjs,soundyogi/casperjs,flyHe/casperjs,davidwhthomas/casperjs,davidwhthomas/casperjs,jefleponot/casperjs,RobertoMalatesta/casperjs,jefleponot/casperjs,hexid/casperjs,jjyycchh/casperjs,vladikoff/casperjs,RobertoMalatesta/casperjs,hudl/casperjs,mcwonka/casperjs,dj31416/casperjs,pbrazdil/casperjs,dj31416/casperjs,soundyogi/casperjs,davidwhthomas/casperjs,muntasir2000/casperjs,dj31416/casperjs,soundyogi/casperjs,ravindrasingh22/casperjs,kyroskoh/casperjs,jjyycchh/casperjs,sircelsiussexy/casperjs,jjyycchh/casperjs,ravindrasingh22/casperjs,RobertoMalatesta/casperjs,pbrazdil/casperjs,casperjs/casperjs,RobertoMalatesta/casperjs,jamesanthonyferguson/casperjs,JZL/casperjs,mickaelandrieu/casperjs,flyHe/casperjs,hudl/casperjs,Andrey-Pavlov/casperjs,JZL/casperjs,alexbiehl/casperjs,mcwonka/casperjs,ravindrasingh22/casperjs,n1k0/casperjs,vietch2612/casperjs,kyroskoh/casperjs,jamesanthonyferguson/casperjs,mcwonka/casperjs,linkedin/casperjs,JZL/casperjs,casperjs/casperjs,HienLeThi/Casperjs_Demo,hlr1983/casperjs,joshuafcole/casperjs,joshuafcole/casperjs,jefleponot/casperjs,singhdev/casperjs,vladikoff/casperjs,dj31416/casperjs,artillery/casperjs,linkedin/casperjs,flyHe/casperjs,pbrazdil/casperjs,sircelsiussexy/casperjs,hudl/casperjs,hexid/casperjs,hexid/casperjs,cryptoquick/casperjs,HienLeThi/Casperjs_Demo,muntasir2000/casperjs,linkedin/casperjs,hexid/casperjs,muntasir2000/casperjs,n1k0/casperjs,flyHe/casperjs,cryptoquick/casperjs,casperjs/casperjs,soundyogi/casperjs,jamesanthonyferguson/casperjs,jefleponot/casperjs,vietch2612/casperjs,ravindrasingh22/casperjs,kyroskoh/casperjs,JZL/casperjs,vladikoff/casperjs,muntasir2000/casperjs,sircelsiussexy/casperjs,HienLeThi/Casperjs_Demo,PeterWangPo/casperjs,mickaelandrieu/casperjs,PeterWangPo/casperjs,mickaelandrieu/casperjs,davidwhthomas/casperjs,vladikoff/casperjs,joshuafcole/casperjs,sircelsiussexy/casperjs,singhdev/casperjs,davidwhthomas/casperjs,jamesanthonyferguson/casperjs,kyroskoh/casperjs,kyroskoh/casperjs,PeterWangPo/casperjs,mcwonka/casperjs,linkedin/casperjs,alexbiehl/casperjs,PeterWangPo/casperjs,Andrey-Pavlov/casperjs,alexbiehl/casperjs,pbrazdil/casperjs,soundyogi/casperjs,PeterWangPo/casperjs,hudl/casperjs,istr/casperjs,JZL/casperjs,joshuafcole/casperjs,jamesanthonyferguson/casperjs,artillery/casperjs,vietch2612/casperjs,vladikoff/casperjs,PeterWangPo/casperjs,n1k0/casperjs,hlr1983/casperjs,mickaelandrieu/casperjs,linkedin/casperjs,mickaelandrieu/casperjs,cryptoquick/casperjs,artillery/casperjs,hexid/casperjs,Andrey-Pavlov/casperjs,n1k0/casperjs,casperjs/casperjs,istr/casperjs,hlr1983/casperjs,ravindrasingh22/casperjs,cryptoquick/casperjs,artillery/casperjs,n1k0/casperjs,istr/casperjs,casperjs/casperjs,cryptoquick/casperjs,flyHe/casperjs,muntasir2000/casperjs,hexid/casperjs,vietch2612/casperjs,Andrey-Pavlov/casperjs,Andrey-Pavlov/casperjs,JZL/casperjs,kyroskoh/casperjs,singhdev/casperjs,hlr1983/casperjs,dj31416/casperjs,linkedin/casperjs,n1k0/casperjs,casperjs/casperjs,HienLeThi/Casperjs_Demo,RobertoMalatesta/casperjs,pbrazdil/casperjs,jefleponot/casperjs,davidwhthomas/casperjs,hlr1983/casperjs,singhdev/casperjs,jjyycchh/casperjs,mcwonka/casperjs,cryptoquick/casperjs,flyHe/casperjs,joshuafcole/casperjs,jjyycchh/casperjs,mickaelandrieu/casperjs,jamesanthonyferguson/casperjs,Andrey-Pavlov/casperjs,mcwonka/casperjs,alexbiehl/casperjs,HienLeThi/Casperjs_Demo,singhdev/casperjs,artillery/casperjs,vietch2612/casperjs,soundyogi/casperjs,istr/casperjs,alexbiehl/casperjs,HienLeThi/Casperjs_Demo,sircelsiussexy/casperjs,hlr1983/casperjs,hudl/casperjs,alexbiehl/casperjs,dj31416/casperjs,sircelsiussexy/casperjs,istr/casperjs,ravindrasingh22/casperjs,vietch2612/casperjs,jefleponot/casperjs,artillery/casperjs,joshuafcole/casperjs,muntasir2000/casperjs,pbrazdil/casperjs,istr/casperjs