0/gzip, deflate, sdch, br
0/gzip
0/br
0/deflate
1/gzip, deflate, sdch, br
1/gzip
1/br
1/deflate
2/gzip, deflate, sdch, br
2/gzip
2/br
2/deflate
0/gzip;q=0.666
0/gzip;q=0.666x
0/gzip;q=#0.666
0/gzip; Q = 0.666
0/gzip;q=0.0
0/gzip;q=-0.1
0/aaa, gzip;q=0.666, bbb
0/ br ; q=0.666, bbb
0/aaa, gzip;q=0.666 , 
3/gzip
