The XSPUrl object that you can access via the XPages
context has a lot of handy methods.
getFragement() isn’t one of them.
I was looking through the help documentation for XSPUrl recently and noticed that the object includes a method for getting the url fragment (i.e. the part of the URL after the hash). It was unexpected, but I figured it could be handy since I was working with some (non-XPages) tabs on pages in a recent application.
However, as shown on Dave Leedy’s helpful XPages URL Cheatsheet,
getFragment() doesn’t return anything when referring to the URL gleaned from the current context!
This makes sense, as the hash is a client-side redirect and is not even sent to the server, so a server-side method wouldn’t be able to see it. But it’s included in the XPages Documentation which, hilariously, references Chris Toohey’s post about this from several years ago.