adding catch-all to url provider
adding catch-all to url provider

AlfiyaZi/nbviewer,imsparsh/nbviewer,roxyboy/nbviewer,christophelec/nbviewer,AlfiyaZi/nbviewer,Sage-Bionetworks/nbviewer,Jay-Oh-eN/nbviewer,roxyboy/nbviewer,bollwyvl/nbviewer,imsparsh/nbviewer,thomasyu888/nbviewer,iamjakob/nbviewer,thomasyu888/nbviewer,bollwyvl/nbviewer,Sage-Bionetworks/nbviewer,iamjakob/nbviewer,christophelec/nbviewer,Jay-Oh-eN/nbviewer