Web Serial Api Browser — Support [portable]

If your app requires maintaining a serial connection across page reloads, note that the Web Serial API port object is not serializable. You can, however, use a shared worker to hold the port reference and reconnect after a crash.

If you are building a public website that must work for everyone without asking them to switch browsers, then no—you cannot rely solely on the Web Serial API. You will need fallback mechanisms. web serial api browser support

As of April 2026, the Web Serial API is primarily supported by browsers. Support Status Google Chrome ✅ Supported (since v89) Full support on desktop platforms. Microsoft Edge ✅ Supported (since v89) Fully supported on Windows, macOS, and Linux. Opera ✅ Supported (since v75/76) Full desktop support. Vivaldi ✅ Supported Based on the Chromium engine. Firefox ⚠️ Partial / Nightly If your app requires maintaining a serial connection

Apple continues to decline the Web Serial API for Safari on both macOS and iOS. The primary reason cited is the potential for fingerprinting and the risks of giving a sandboxed web environment direct access to hardware peripherals. There is currently no official timeline for future support. How to Implement Browser Detection You will need fallback mechanisms

The API is exposed via navigator.serial . Key methods:

64 thoughts on “Quantum Chess”

    • That is possible! In fact yesterday, in the comments section of the kickstarter, we discussed a series of moves that resulted in a pawn being both alive and dead after an attack by en passant!

      Reply ↓

    • It can get quite complex, yes. But so can chess by itself. Understanding the rules of how pieces move is only the first step. Mastering the complexity, as in almost any game, must come through practice and experience. You can also just play chess as you normally would. The level of complexity is up to you to control. As you play, and begin to understand the mechanics better, you can use more of the quantum aspects.

      Reply ↓

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  5. This is pretty neat! A fine way to get people understand QM!
    We are aiming to start a Quantum Chess club here at IIT-Madras, India. Your explanation has helped us very much!
    Can you please explain more on entanglement and its applications in the game? As usual, QM confused me 🙂

    Reply ↓

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  7. What happens if you take a piece in a quantum state (or in superposition I’ve seen different versions with different rules for this)? Just wondering how the collapse would happen. If you took a piece in a quantum state and that piece wasn’t there (say the queen was taken in a quantum state even though the queens real position was the original), would that piece be able to hit a quantum state again? Also how would you know (or the program know) where the true piece actually lies?

    Sorry for all the questions, I just find this really cool and would like to try it out sometime. I just feel like I’m missing a tad bit with the rules in terms of quantum states and taking pieces. Also could you checkmate with 1 piece in a quantum state. Like say you pinned a king on one side of the board where it’s put in check by a rook but can’t move out of check without being put in check by the same rook’s quantum state (or superimposed self).

    Reply ↓

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