<text> x attribute over-riding <textPath> startOffset attribute

Hi all

I recently stumbled across this "oddity".  Try the following link in Chrome.

http://jsfiddle.net/u5z02hpx/8/

I would expect the vertical bar ('|') glyph to be vertical, but it is
tilted.  I initially thought it was a Chrome browser bug, as FF doesn't do
it:  But it turns out it is probably due to the following rule in the
textPath layout instructions:

When the inline-progression-direction
> <http://www.w3.org/TR/SVG/text.html#SettingInlineProgressionDirection> is
> horizontal, then any ‘x’ attributes on ‘text’
> <http://www.w3.org/TR/SVG/text.html#TextElement>, ‘tspan’
> <http://www.w3.org/TR/SVG/text.html#TSpanElement>, ‘tref’
> <http://www.w3.org/TR/SVG/text.html#TRefElement> or ‘altGlyph’
> <http://www.w3.org/TR/SVG/text.html#AltGlyphElement> elements represent
> new absolute offsets along the path, thus providing explicit new values for
> startpoint-on-the-path.



That seems like an odd rule to me.  Does anyone remember what the purpose
of it was?  It seems odd to complete override the startOffset calculation.


Checking the main browsers, it looks like only IE has implemented the way
it seems to be worded (x overrides startOffset).

Chrome: startpoint-on-the-path = (startOffset + x)   - wrong!?
Firefox:  startpoint-on-the-path = startOffset   - wrong!?  (seems to
ignore it. x has no effect on startOffset)
IE:  startpoint-on-the-path = x   - seems correct based on the wording.


Paul