Scaling doesn't apply to characters in fallback text font

Created by: Herst

Let's say you have something like "\text{Gauß}" in your TeX input and you are rendering it in the HTML-CSS format output using the TeX font, then the "ß" is going to be rendered in a fallback font but the "scaling all math" setting is apparently not respected for that character.

From the DOM I see that the "ß" gets puts into its own span but why is the font-size explicitly reduced there? (e.g. to 40% in the case of a global scale factor of 200% on my test page)

Reproducible with the 2.3 and 2.4 beta in different browsers.

DOM snippet:

<span style="font-family: MathJax_Main;" id="MathJax-Span-6" class="mtext">Gau<span style="font-family: STIXGeneral,'Arial Unicode MS',serif; font-size: 40%; font-style: normal; font-weight: normal;">ß</span></span>