Comment 9 for bug 1463072

The tl;dr on how to fix this:

Get id of default profile:

    pid=$(dconf read /org/gnome/terminal/legacy/profiles:/default | tr -d "'")

Remove the boundary property of some additional characters:

    dconf write /org/gnome/terminal/legacy/profiles:/:$pid/word-char-exceptions '@ms "-=&#:/.?@+~_%;"'

Where the `@ms` denotes the maybe-string gvariant type.

With that a double-click should select URLs like:

    http://foo-bar.example.org/query.html#xyz?key1=value1&key2=value2