1475261 - Firefox doesn't display an error for an empty FTP

Status: RESOLVED WONTFIX

(Core Graveyard :: Networking: FTP, defect, P3)

Description

[Oana Botisan, Desktop QA]

[Affected versions]:
- Firefox 61.0
- Firefox 62.0b7
- Nightly 63.0a1

[Affected platforms]:
- Windows 10 x64
- macOS 10.12
- Ubuntu 16.04

[Steps to reproduce]:
1. In a new tab go to this link: ftp://cyberghost.pro:80/pro.php
2. Observe behaviour. 

[Expected result]:
- Browser must inform you that ftp is not used at this address.

[Actual result]:
- Windows and mac: a blank page is displayed. 
- Ubuntu: Nothing happens. The new tab is still displayed. 

[Regression range]:
- I don't think this is a regression. I can reproduce this behaviour even on a build from 2008-01-03. 

[Additional notes]:
- On Chrome, Safari and Edge an error is displayed that the site can't be reached or that the page is not working.

Comment 1

[Darkspirit]

Connection errors are empty text instead of error pages. (comment 0)
After bug 1560699 an empty file is offered to download as it's not an error page or a directory listing.
This bug should be fixed to reduce confusion.
bug 1565433 may be a duplicate.