User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0

Steps to reproduce:

The methods "exponentialRampToValueAtTime" and "linearRampToValueAtTime" do not work (and havent worked for some months)

Reproducible using your own examples:
https://mdn.github.io/webaudio-examples/audio-param/

The "ramp" methods sometime work the second time you call them, but never the first time. Reloading the page is required to trigger the bug more than once.

Btw the example link in your docs is broken -> https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/linearRampToValueAtTime

Actual results:

Instead of fading to the desired gain value, it just jumps to said value at the end of the time period specified when calling the methods

Expected results:

the ramp methods should gradually fade the volume instead of setting the volume instantly.

Went back to 2016-07 build and still see the issue. Doesn't appear to be a regression, rather a long standing issue. Repros under Windows 10 and Linux for me.

Paul, is this something on your radar?