Actually with Gnash and proprietary Javascript the page just loads with *no*
content on it. I can still do the written homework, though there is
compromise there as well. The "official" e-book for the course uses Wolfram's
proprietary Computable Document Format, but I've been using the HTML fallback
that they offer (with proprietary Javascript).
"If the professor's mathematics is only describable in Adobe Flash, then
perhaps that is the only environment in which it works."
Well, I assume the vendor only uses Adobe Flash so they can allow the answers
to be "pretty-printed." It's a terrible reason to perpetuate such horrible
software, especially in the face of modern technology like MathJax. Honestly,
paper and pen is much easier to use for mathematics than their bad interface
anyway.