wxt dev keyboard shortcut handler captures all stdin in tmux

[SimonKrenn]

Describe the bug

When running wxt dev inside tmux, stdin appears hijacked by the dev process. Keystrokes typed in the browser are consumed by the keyboard shortcut handler instead of reaching the browser instance

Reproduction

1. start a tmux session
2. run wxt dev
3. type something inside the launched browser instance

Steps to reproduce

No response

System Info

System:
    OS: macOS 26.3.1
    CPU: (8) arm64 Apple M1 Pro
    Memory: 101.02 MB / 16.00 GB
    Shell: 4.1.2 - /opt/homebrew/bin/fish
  Binaries:
    Node: 22.15.0 - /Users/simonkrenn/.local/share/mise/installs/node/22.15.0/bin/node
    Yarn: 1.22.19 - /opt/homebrew/bin/yarn
    npm: 10.9.2 - /Users/simonkrenn/.local/share/mise/installs/node/22.15.0/bin/npm
    pnpm: 8.12.0 - /opt/homebrew/bin/pnpm
    bun: 1.3.5 - /Users/simonkrenn/.bun/bin/bun
  Browsers:
    Chrome: 147.0.7727.56
    Safari: 26.3.1
  npmPackages:
    wxt: ^0.20.22 => 0.20.22

Used Package Manager

pnpm

Validations

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• Read the docs.
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• The provided reproduction is a minimal reproducible example of the bug.

[aklinker1]

What the heck... weird.

1. start a tmux session

I'm not a tmux user, I need more info.

[SimonKrenn]

there really isnt a lot more to it then just launching tmux and running wxt, i added a screenrecording that shows more clearly what happens:
https://github.com/user-attachments/assets/d5f5f7a7-a197-4056-a8ea-86f83609b6c4

script that is being run to start the dev server: "dev": "wxt --port 3003"
and my wxt config:

export default defineConfig({
	modules: ["@wxt-dev/module-react"],
	manifest: {
		permissions: ["tabs"],
		host_permissions: ["http://localhost:3003/*"],
	},
});