[bug] Application launch is incredibly slow

[NotGhoull]

Describe the bug

When running bun [run] tauri dev the window takes upwards of 30 - 40 seconds to connect to the svelte page/vite, it's immediately available in the browser though.

This could very well be user error, and I've just missed something, but even in a clean project the behavior still appears for whatever reason.

Reproduction

1. run bun create tauri-app
2. Select Svelte and Typescript
3. Run the project and observe slow behavior

Expected behavior

For the application to load quicker, maybe this is intended, but it doesn't seem that way.

Full tauri info output

[✔] Environment
    - OS: Arch Linux Rolling Release x86_64 (X64) (KDE on wayland)
    ✔ webkit2gtk-4.1: 2.46.5
    ✔ rsvg2: 2.59.2
    ✔ rustc: 1.84.1 (e71f9a9a9 2025-01-27)
    ✔ cargo: 1.84.1 (66221abde 2024-11-19)
    ✔ rustup: 1.27.1 (54dd3d00f 2024-04-24)
    ✔ Rust toolchain: stable-x86_64-unknown-linux-gnu (default)
    - node: 23.8.0
    - pnpm: 10.4.0
    - npm: 11.1.0
    - bun: 1.2.2

[-] Packages
    - tauri 🦀: 2.2.5
    - tauri-build 🦀: 2.0.5
    - wry 🦀: 0.48.1
    - tao 🦀: 0.31.1
    - @tauri-apps/api : 2.2.0
    - @tauri-apps/cli : 2.2.7

[-] Plugins
    - tauri-plugin-log 🦀: 2.2.1
    - @tauri-apps/plugin-log : 2.2.1
    - tauri-plugin-opener 🦀: 2.2.5
    - @tauri-apps/plugin-opener : 2.2.5

[-] App
    - build-type: bundle
    - CSP: unset
    - frontendDist: ../build
    - devUrl: http://localhost:1420/
    - framework: Svelte
    - bundler: Vite

Stack trace

Additional context

No response

[perezd]

I have this same experience but it's totally random. I end up just restarting the dev server a few times until it works...Not sure what's up.

[NotGhoull]

I haven't been able to get it to launch fast, even when re-trying multiple times, it being this slow is really annoying for developing applications.

[perezd]

That's odd. I am on MacOS (not Linux). It happens randomly, and I can't figure out what causes it.

[NotGhoull]

From what I can tell, it seems to be a bug in maybe the webview? Or whatever window they're using for connecting to the frontend (React, svelte, etc) takes a while to even begin to connect. Since my Rust code runs straight away, the frontend is instantly available on localhost, it's just the window takes forever to connect, for whatever reason.

I'm only a beginner developer, so I could be entirely wrong, but from what I can see that seems to be at least a issue

[NotGhoull]

I've been able to experience up to, almost 3 and a half minutes to just connect when running in tauri dev it was at about 2.5 minutes before it even started to load my code, which is basically just a hello world page with a bit of tailwind in it