HtmlDirectoryListener adds slash to the end of file URLs

[rbdavison]

Description of the bug When listing files in directories using the HtmlDirectoryListener the URLs for the files end in a slash. This causes issues with some tools such as wget which will download the file and save it as index.html instead of the name of the files.

To Reproduce Steps to reproduce the behavior:

1. In a directory (/temp) put some files
2. Create a server using the following code WebServer server = new WebServer(HttpListenerMode.EmbedIO, "http://*:8080"); server.WithLocalSessionManager(); server.WithModule(new EmbedIO.Files.FileModule("/", new EmbedIO.Files.FileSystemProvider(Path.GetFullPath(Path.Combine("/", "temp")), false)) { DirectoryLister = EmbedIO.Files.DirectoryLister.Html, }); server.RunAsync();
3. Open the servers web page in a web browser
4. Examine the URLs for the files that are listed in the directory

Expected behavior The URLs for listed files should not end with a slash.

Screenshots Chrome browser from Windows Chrome on Android

Desktop:

• OS: Windows 10
• Browser chrome
• Version [e.g. 22]

Smartphone:

• Device: Samsung Note5
• OS: Android 7.0
• Browser Chrome
• Version ??

Additional context Pull request: https://github.com/unosquare/embedio/pull/503

[stale[bot]]

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