flask dynamic audio urls

It does not seem to work on chrome, but it does for safari. You have to click the "start speaking" button to allow p5 to play sound.

the server code can successfully generate new audio files and send the urls to the client, but the client cannot load the audio_url dynamically. It does work if you paste in the url as it is currently. There needs to be a way to replace the url with the audio_url variable and make it work.