when repeatedly tapping the next-folder button, occasionally it will
reload the entire page instead of ajax'ing the directory contents.
Navigation happens by simulating a click in the directory sidebar,
so the incorrect behavior matches what would happen if the link to the
folder didn't have its onclick-handler attached, so should probably
double-check if there's some way for that to happen
Issue observed fairly easily in firefox on android, regardless if
copyparty is running locally or on a server in a different country.
Unable to reproduce with android-chrome or desktop-firefox
Could also be due to an addon (dark-reader, noscript, ublock-origin)
anyways, avoiding this by doing the navigation more explicitly
5d13ebb4ac