Scott Simmons said the following on 10/26/2013 09:49 PM:
Consider what happens if you have a standard, non-fancy HTML page with
two external stylesheets referenced in the source. You open that page
in the browser, and the browser reads the code to display the page,
building a working version (a DOM) out of what it encounters. It loads
the first external stylesheet into memory, then the second. If a class
in the second stylesheet contradicts the first, it supersedes it — but
the browser doesn't write those changes back to the HTML file.
Yes, but the moment you introduce javascript everything changes and the
above assertion isn't true any more. In fact its irrelevant.
The javascript could then write out a copy of itself but with the CSS is
head read from external sources 'inline'. Self replicating code is a
common 'exercise left to the reader' in CompSci courses.
Further, if the source of the CSS is a list of files rather than ones
defines in the <HEAD>, the the javascript can manipulate the list,
reverse it, randomise it any which way, combine it with CSS it already
has, translate HEX colours to decimal "rgb()" style, convert keywords to
upper-case, convert all character entities the the ampersand format.
Heck, the code to do much of that is in the 'tidy' HTML reformatter, its
no big deal.
My point is that the moment you fail to consider what javascript can do,
as in the above, then all bets are off.
TiddlyWiki could be doing anything.
The issue is what it *IS* doing, and considering what a non-javascript
driven browser does with CSS statements in the <HEAD> is irrelevant
since (a) the inline CSS in the <head> of an empty.html Tiddlywiki is
minimal and (b) all the real CSS is produced programatically by javascript.
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more even than death. . . . Thought is subversive and revolutionary,
destructive and terrible, thought is merciless to privilege, established
institutions, and comfortable habit. Thought looks into the pit of hell
and is not afraid. Thought is great and swift and free, the light of the
world, and the chief glory of man.
-- Bertrand Russell
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