Non-ASCII characters in static files

[cyco130]

Describe the bug The static file handler can't handle non-ASCII characters in file names.

To Reproduce

• Create a file named public/🙂🙂🙂.txt with the content Hello world
• Run the dev server
• Visit the URL /%F0%9F%99%82%F0%9F%99%82%F0%9F%99%82.txt (i.e. /🙂🙂🙂.txt)
• Notice the 404 error

Expected behavior The text Hello world should be shown.

Information:

• OS: Fails on Linux, Windows, and MacOS.
• Browser: Fails on Chrome, Safari, Firefox.
• Version: 0.7.8