fix tests and code related to is_webpage and external_link
fix tests and code related to is_webpage and external_link

Virtual-Liver-Network/seek,HITS-SDBV/seek,aina1205/nmtrypi-seek,Virtual-Liver-Network/seek,HITS-SDBV/seek,stuzart/seek,aina1205/nmtrypi-seek,HITS-SDBV/nmtrypi-seek,Virtual-Liver-Network/seek,HITS-SDBV/seek,aina1205/nmtrypi-seek,HITS-SDBV/nmtrypi-seek,Virtual-Liver-Network/seek,SynthSys/seek,SynthSys/seek,kjgarza/frame_experiment,stuzart/seek,kjgarza/frame_experiment,kjgarza/frame_experiment,stuzart/seek,SynthSys/seek,HITS-SDBV/nmtrypi-seek,HITS-SDBV/nmtrypi-seek,kjgarza/frame_experiment,aina1205/nmtrypi-seek,HITS-SDBV/seek,SynthSys/seek