DX Serve Returns HTTP 500 for URLs Longer Than 270 Characters

**Problem**

When accessing URLs longer than 270 characters, the `dx serve` server returns HTTP 500.

**Steps To Reproduce**

- Host any web app using `dx serve` and enter a URL longer than 270 characters.

**Expected behavior**

URLs with lengths up to 2k characters to perform without error.

**Environment:**
- Dioxus version: `0.6-alpha.02`
- Rust version: `1.81`
- OS info: `Windows 10`
- App platform: `Web`