Selected file is empty if filename contains a space

[falkoschindler]

Specification

• pywebview version: 4.0.2
• operating system: Mac OS 13.4.1
• web renderer: WebKit

Description

We noticed that our file picker yields empty files if we run with pywebview and the file contains a space.
The problem seems to be on the client side before the upload actually happens.
We boiled it down to this minimal example:

import webview

webview.create_window('Test', html='''
    <input type="file" onchange="displayFileSize()" />
    <script>
    function displayFileSize() {
        document.write(document.querySelector("input").files[0].size + " bytes");
    }
    </script>
''')
webview.start()

When picking a non-empty file like "test file.txt", the displayed size is 0.
When picking a non-empty file like "test_file.txt", the displayed size is not 0.

[r0x0r]

Spaces in filenames were incorrectly encoded with %20s. I have fixed this in master now.