fix speed grader when the uri has no hash
fix speed grader when the uri has no hash

refs #6459

testplan: load the speed grader without any fragment #stuff-like-this in
the url and make sure it renders properly

Change-Id: Ia1556341ce621a41cd8918487e24a711e4de992b
Reviewed-on: https://gerrit.instructure.com/7196
Tested-by: Hudson <dfb64870173313a9a7b56f814c8e3b33e268497a@instructure.com>
Reviewed-by: Zach Wily <9de8c4480303b5335cd2a33eefe814615ba3612a@instructure.com>

samuels410/greatlakes-lms,wimemx/Canvas,nditech/red-innovadores-lms,wye0220/shindig-canvas,jay3126/canvas-lms,venturehive/canvas-lms,antoniuslin/canvas-lms,ShreniiNepal/shrenii_lmp,grahamb/canvas-lms,wimemx/Canvas,skmezanul/canvas-lms,antoniuslin/canvas-lms,venturehive/canvas-lms,jay3126/canvas-lms,merichar/canvas-lms,leftplusrightllc/canvas-lms,kyroskoh/canvas-lms,sfu/canvas-lms,Rvor/canvas-lms,jay3126/canvas-lms,whalejasmine/canvas-lms,loganrun/pincan,ShreniiNepal/shrenii_lmp,grahamb/canvas-lms,loganrun/pincan,fronteerio/canvas-lms,skmezanul/canvas-lms,kyroskoh/canvas-lms,arrivu/hoodemo,va7map/canvas-lms,arrivu/qibla-ecampus,sfu/canvas-lms,sdeleon28/canvas-lms,djbender/canvas-lms,shidao-fm/canvas-lms,Unow/ins,sli7246/canvas_branch,tgroshon/canvas-lms,loganrun/pincan,roxolan/canvas-lms,tgroshon/canvas-lms,arrivu/hoodemo,kyroskoh/canvas-lms,jay3126/canvas-lms,leftplusrightllc/canvas-lms,nditech/red-innovadores-lms,samuels410/greatlakes-lms,kyroskoh/canvas-lms,rup/Tarrax,ankithbti/canvas_lms,HotChalk/canvas-lms,skmezanul/canvas-lms,arrivu/arrivu-lms,rup/Tarrax,em2/canvas-lms,grahamb/canvas-lms,arrivu/qibla-ecampus,ankithbti/canvas_lms,Rvor/canvas-lms,wrdsb/canvas-lms,utkarshx/canvas-lms,sdeleon28/canvas-lms,nditech/red-innovadores-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,samuels410/greatlakes-lms,Jyaasa/canvas-lms,ShreniiNepal/shrenii_lmp,roxolan/canvas-lms,roxolan/canvas-lms,redconfetti/canvas-lms,sdeleon28/canvas-lms,merichar/canvas-lms,parbros/red-innovadores-lms,antoniuslin/canvas-lms,leftplusrightllc/canvas-lms,wye0220/shindig-canvas,utkarshx/canvas-lms,tgroshon/canvas-lms,djbender/canvas-lms,SwinburneOnline/canvas-lms,efrj/canvas-lms,tgroshon/canvas-lms,landonwilkins/canvas-lms,landonwilkins/canvas-lms,sfu/canvas-lms,ottenhoff/canvas-lms,usmschuck/canvas,Jyaasa/canvas-lms,redconfetti/canvas-lms,arrivu/jigsaw-lms,arrivu/jigsaw-lms,va7map/canvas-lms,usmschuck/canvas,Rvor/canvas-lms,djbender/canvas-lms,fronteerio/canvas-lms,rup/Tarrax,Unow/canvas-lms,nditech/red-innovadores-lms,utkarshx/canvas-lms,ShreniiNepal/shrenii_lmp,sli7246/canvas_branch,antoniuslin/canvas-lms,fronteerio/canvas-lms,landonwilkins/canvas-lms,SwinburneOnline/canvas-lms,sli7246/canvas_branch,va7map/canvas-lms,wye0220/shindig-canvas,parbros/red-innovadores-lms,juoni/canvas-lms,greyhwndz/canvas-lms,efrj/canvas-lms,whalejasmine/canvas-lms,venturehive/canvas-lms,HotChalk/canvas-lms,Unow/ins,redconfetti/canvas-lms,efrj/canvas-lms,greyhwndz/canvas-lms,Jyaasa/canvas-lms,Jyaasa/canvas-lms,juoni/canvas-lms,va7map/canvas-lms,usmschuck/canvas,em2/canvas-lms,usmschuck/canvas,djbender/canvas-lms,SwinburneOnline/canvas-lms,arrivu/arrivu-lms,sfu/canvas-lms,venturehive/canvas-lms,grahamb/canvas-lms,wrdsb/canvas-lms,wrdsb/canvas-lms,merichar/canvas-lms,efrj/canvas-lms,wrdsb/canvas-lms,greyhwndz/canvas-lms,arrivu/qibla-ecampus,Unow/ins,skmezanul/canvas-lms,greyhwndz/canvas-lms,whalejasmine/canvas-lms,HotChalk/canvas-lms,wimemx/Canvas,grahamb/canvas-lms,roxolan/canvas-lms,Unow/canvas-lms,ottenhoff/canvas-lms,HotChalk/canvas-lms,shidao-fm/canvas-lms,shidao-fm/canvas-lms,arrivu/hoodemo,shidao-fm/canvas-lms,whalejasmine/canvas-lms,em2/canvas-lms,juoni/canvas-lms,ottenhoff/canvas-lms,ankithbti/canvas_lms,arrivu/jigsaw-lms,sdeleon28/canvas-lms,leftplusrightllc/canvas-lms,fronteerio/canvas-lms,Rvor/canvas-lms,utkarshx/canvas-lms,landonwilkins/canvas-lms,SwinburneOnline/canvas-lms,redconfetti/canvas-lms,juoni/canvas-lms,samuels410/greatlakes-lms,arrivu/arrivu-lms,parbros/red-innovadores-lms,Unow/canvas-lms