Fix URL encoding in content accessor by replacing quote_plus with quote for file URLs

[pranshugupta01]

What type of PR is this? (Check all that apply)

• 🛠 Refactor
• ✨ Feature
• 🐛 Bug Fix
• ⚡ Optimization
• 📝 Documentation Update

Description

This PR fixes an issue with the file_download control when file names contain spaces. Previously, spaces in filenames were encoded as + characters (using urllib.parse.quote_plus), which caused browsers to fail to locate the files. This PR changes the URL encoding to use urllib.parse.quote instead, which properly encodes spaces as %20 in URLs, allowing files with spaces in their names to be downloaded correctly.

Related Tickets & Documents

• Closes [🐛 BUG] Problem with file_download when file name has spaces #2523

How to reproduce the issue

1. Create two text files in the same directory: sample_file.txt and sample file.txt (with a space)
2. Create a Taipy app with:

 import taipy.gui.builder as tgb
   from taipy import Gui

   with tgb.Page() as test_page:
       tgb.text("# Test Download button", mode="md")
       tgb.file_download(
           content="sample file.txt",  # Use file with space in name
           label="Download File",
       )

   if __name__ == "__main__":
       gui = Gui(page=test_page)
       gui.run(
           title="Test download",
           use_reloader=True,
       )

3. Run the app and click the download button
4. Before the fix: A .htm file is downloaded with a 404 error message
5. After the fix: The text file is properly downloaded

Backporting

This change should be backported to:

• 3.0
• 3.1
• 4.0
• develop

Checklist

We encourage keeping the code coverage percentage at 80% or above.

• ✅ This solution meets the acceptance criteria of the related issue.
• 📝 The related issue checklist is completed.
• 🧪 This PR includes unit tests for the developed code.
  If not, explain why:
• 🔄 End-to-End tests have been added or updated.
  If not, explain why:
• 📚 The documentation has been updated, or a dedicated issue has been created.
  If not, explain why:
• 📌 The release notes have been updated.
  If not, explain why:

[FredLL-Avaiga]

Can you add a test ?

[pranshugupta01]

Hey @FredLL-Avaiga i have added test , please verify

[FredLL-Avaiga]

Excellent, tx a lot @pranshugupta01