view-source: behiavor is not consistent

[jls28]

view-source: behiavor is not consistent :

if a page is already opened,
and I navigate to another URL with view:source: scheme,
the new title of the page is view-source:URL,
ok this allow to know this is a view-source: page
because get_Source/onSourceChanged always return the URL without view-source:;
and if the URL is a local file://,
in this case the new title is the file name with extension
so there are no way to know this is a view-source: page;

but If a this is a NEW PAGE is opened with view-source:URL,
(by New Window Requested or not)
the new title is the URL with the begin "https://www." removed ... (this is very strange)
and get_Source/onSourceChanged always return the URL without view-source:;
and if the URL is a local file://, the new title is the file name with extension
so in all case there are no way to know this is a view-source: page;

a concrete exemple : view-source:https://www.viksoe.dk/code/all_wtl.htm

				page already open					new page
title				view-source:https://www.viksoe.dk/code/all_wtl.htm      viksoe.dk/code/all_wtl.htm
get_Source/OnSourceChanged:     https://www.viksoe.dk/code/all_wtl.htm			https://www.viksoe.dk/code/all_wtl.htm
javascript window.document.title is empty;

this will be not possible to simply make get_Source/onSourceChanged
return "view-source:https://www.viksoe.dk/code/all_wtl.htm"
like Edge display ?
or supply a reliable way to know this is a view-source: page