tmux not working with wezterm

[liketoeatcheese]

Hey mate,

First of all, such a legend to bring images to the terminals for the community!

Issue description

I'm having trouble to enter ueberzugpp in tmux.

ueberzugpp layer --use-escape-codes
terminate called after throwing an instance of 'nlohmann::json_abi_v3_11_3::detail::parse_error'
  what():  [json.exception.parse_error.101] parse error at line 1, column 1: attempting to parse an empty input; check that your input string or stream contains the expected JSON
Aborted

Note that it works without tmux:
ueberzugpp layer --use-escape-codes
Enter to go into ueberzugpp, then paste this in:
{"action": "add", "identifier": "preview", "x": 0, "y": 0, "max_width": 1920, "max_height": 1080, "path": "/home/wpham/wisdom/FrontEnd/CSS/Resources/fillmode_default.png"}

Version

ueberzugpp --version
ueberzugpp 2.9.6

tmux -V
tmux 3.4

I'm using wsl via wezterm on NixOS:

C:\Users\wpham>wezterm --version
wezterm 20240203-110809-5046fc2

[jstkdng]

That is a weird issue, do you have a config file?

[liketoeatcheese]

I tried with and without. Here's the config that I used but shouldn't matter since didn't work without it as well:

{
  "layer": {
    "silent": false,
    "use-escape-codes": true,
    "no-stdin": false
  }
}