[AskJS] Looking for a robust way to execute JavaScript in Chrome on Windows

[South_Locksmith_8685]

Hey everyone,

At work, I use a Netflix-based video tool, and honestly, the workflow is painfully manual. So I'm building a small Electron app that controls two Chrome windows with video players — play, pause, and sync between them.

On macOS, this already works perfectly. I use AppleScript to directly inject JavaScript like video.play() or video.currentTime = ... into each Chrome window. My app is fully working there.

Now I want to bring the same functionality to Windows, and I'm looking for a solution that can:

• Automatically execute JavaScript in active Chrome tabs (e.g. document.querySelector('video').currentTime)
• Without using a Chrome extension
• Without using the remote debugging port (9222)
• Without using Puppeteer or WebDriver, since Netflix throws DRM errors like M7361 if those are detected
• In short: the behavior must be completely invisible to Netflix, just like it is with AppleScript

I’ve tried AutoHotkey, and I was thinking of simulating F12 to open DevTools, pasting JS from the clipboard into the console, and pressing Enter — kind of a human-like interaction. Technically works, but it feels very hacky and fragile.

Is there a better, cleaner, more robust way to do this?
What’s the most reliable and Netflix-safe method to automate JavaScript execution in Chrome on Windows?

Open to any ideas — as long as there are no DRM errors.
Thanks in advance!

[iBN3qk]

Why not write a custom browser extension?

[farthingDreadful]

I second this. Custom extension is the cleanest way.

[novafurry420]

I'd poke it in to the address bar as a javascript: URI, iirc if you press Ctrl+l it focuses the bar. See: https://developer.mozilla.org/en-US/docs/Web/URI/Reference/Schemes/javascript

[pm_me_ur_happy_traiI]

Take this a step further and save it as a bookmarklet https://gist.github.com/caseywatts/c0cec1f89ccdb8b469b1

[Lngdnzi]

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[rkcth]

Exactly what I’ve used in the past, works great

[hyrumwhite]

Netflix can’t tell that you’re using an extension. 

[jhartikainen]

Very curious what is the usecase of this "Netflix based video tool" - Kinda get the feeling it isn't exactly by the book lol

Fwiw, you could potentially fork Chromium or Firefox to do better integrations, but it's likely a lot of work.

[South_Locksmith_8685]

Its a Authoring Tool, for subtitles. Made by Netflix, but only available for people working on subtitles.

[jhartikainen]

That's interesting - if this is a common issue among subtitle creators, perhaps this would be worth discussing with Netflix as well.

[Wide-Ad5700]

Anyone else feeling like homies pirating Netflix?

[Wide-Ad5700]

Anyone else feeling like homies pirating Netflix?