There is a typographical error in the filesender-cli.py script that causes it to fail when the --insecure flag is used and an initial SSL error occurs.

Problem: On line 215 (within the except requests.exceptions.SSLError block), the slicing used to construct the URL for filesender-config.js.php is base_url[1:-9].

If the base_url starts with https://, this slice removes the leading 'h', resulting in an invalid URL starting with ttps://. This leads to a requests.exceptions.InvalidSchema: No connection adapters were found for 'ttps://...' error.

Comparison:

Line 203 (Correct): config_response = requests.get(base_url[0:-9]+'/filesender-config.js.php',verify=True)
Line 215 (Incorrect): config_response = requests.get(base_url[1:-9]+'/filesender-config.js.php',verify=False)
Steps to reproduce:

Use filesender-cli.py against a server with a self-signed or invalid SSL certificate.
Provide the -i or --insecure flag.
The script will catch the SSLError, enter the elif insecure: block, and crash due to the malformed ttps:// URL.
Suggested Fix: Change the slicing on line 215 from [1:-9] to [0:-9] to match the logic used on line 203.