Yes! I am using the WaveSurfer [0] library to visualize audio waveforms for a project, which uses this. It works, but Chrome always says 'ScriptProcessorNode is deprecated, use AudioWorkletNode instead'.
Anything wrong with audioworklets that are slated to replace it?
Worklets are out of the main process. That is good for a lot of what the script processors are designed for (compute intensive stuff), but having a script node in the main process is the only way I know to get perfect timing. Plus, the ScriptProcessorNode is just very easy to use for simple scripting, compared to the worklets.