What does it mean?
First, let's present the Firefox Add-on to scroll any web page : ReScroll, by Flemish orienteer Jeroen.
So far, it could just scroll the entire result list on Webres. But now we have added a way to filter the result with a new URL parameter: SHOW
Simply add it to the full Webres URL &show=[list of categories, separated by !]. And any part is treated with an implicit wildcard.
Some examples from https://helga-o.com/webres/index.php?lauf=2479
- helga-o.com/webres/index.php?lauf=2479&show=D:01!H:02 gives only D:01 and H:02
- helga-o.com/webres/index.php?lauf=2479&show=D:01!H gives only D:01 and all H