When accessing SO with a bookmark that has a list of tags separated by
or, for instance:
When logging in from this URL, the browser ends up redirected to
After logging in, the URL the browser gets redirected to is
This is Firefox 13.0.1, by the way.
Further testing reveals that whitespace or
%20 get encoded to
+ when pressing the
login button, and that
+ gets ignored when decoding the url to redirect to after the login.
But, if the initial URL contains + instead of whitespace or
%20, the url when logging in contains the tags separated by
%2b. They get decoded correctly to
+ when redirecting after the login so it works properly if the tags in the URL are separated by +.
Such a pity Firefox decodes + and
%2B to whitespace when used in a bookmark.