Now guarding the injectScript function so if you call it with the same path twice it'll only load the file once.
Now guarding the injectScript function so if you call it with the same path twice it'll only load the file once.

gpeden/ynab-enhanced,falkencreative/toolkit-for-ynab,ahatzz11/toolkit-for-ynab,boxfoot/toolkit-for-ynab,egens/toolkit-for-ynab,ahatzz11/toolkit-for-ynab,egens/toolkit-for-ynab,boxfoot/toolkit-for-ynab,mhum/ynab-enhanced,joshmadewell/toolkit-for-ynab,mhum/ynab-enhanced,toolkit-for-ynab/toolkit-for-ynab,egens/toolkit-for-ynab,Niictar/toolkit-for-ynab,Niictar/toolkit-for-ynab,dbaldon/toolkit-for-ynab,blargity/toolkit-for-ynab,mhum/ynab-enhanced,Niictar/toolkit-for-ynab,toolkit-for-ynab/toolkit-for-ynab,toolkit-for-ynab/toolkit-for-ynab,toolkit-for-ynab/toolkit-for-ynab,boxfoot/toolkit-for-ynab,joshmadewell/toolkit-for-ynab,joshmadewell/toolkit-for-ynab,dbaldon/toolkit-for-ynab,mhum/ynab-enhanced,blargity/toolkit-for-ynab,egens/toolkit-for-ynab,falkencreative/toolkit-for-ynab,gpeden/ynab-enhanced,dbaldon/toolkit-for-ynab,boxfoot/toolkit-for-ynab,dbaldon/toolkit-for-ynab,falkencreative/toolkit-for-ynab,gpeden/ynab-enhanced,ahatzz11/toolkit-for-ynab,blargity/toolkit-for-ynab,Niictar/toolkit-for-ynab,gpeden/ynab-enhanced,blargity/toolkit-for-ynab,falkencreative/toolkit-for-ynab,ahatzz11/toolkit-for-ynab,joshmadewell/toolkit-for-ynab