"Should vision-impaired users who use TTS systems be shut off because your framework of choice thought that Javascript should be used to replace functionality that is built into the browser?"
Unfortunately, that's about the scope of options most organizations entertain. If there's any degradation, it tends to lack grace and is on a par with a screenreader.
While I "like" javascript (OK, I like dynamic sites), if my machine seems slow, a cursory look at my running process will show a chrome or safari process that is inevitably getting dry humped by a page using js for a carousel or something equally banal.
Unfortunately, that's about the scope of options most organizations entertain. If there's any degradation, it tends to lack grace and is on a par with a screenreader.
While I "like" javascript (OK, I like dynamic sites), if my machine seems slow, a cursory look at my running process will show a chrome or safari process that is inevitably getting dry humped by a page using js for a carousel or something equally banal.