Greasy Fork

It doesn't work now.

And you thought 7th thread made in the last 48h was needed for me to notice?

Edit the script, so instead of

const processSubInfo = async result => {

it says

const processSubInfo = async result => {
  console.log("processSubInfo data1:", result);
  console.log("processSubInfo data2:", result.timedtexttracks[0].ttDownloadables);
  console.log("processSubInfo data3:", result.timedtexttracks[0].ttDownloadables["webvtt-lssdh-ios8"]);
  console.log("processSubInfo data4:", Object.keys(result.timedtexttracks[0].ttDownloadables["webvtt-lssdh-ios8"]));

Then open browser console (F12, click on the Console tab), refresh the Netflix page and look for entries that start with "processSubInfo data".

Try version 4.2.2.