JavaScript：适配HTTPS的URL文件存在性检查代码求助

Hey there! Let's get your code working with HTTPS for your own domain. Since your existing code handles HTTP just fine, the adjustments are straightforward—mostly swapping out HTTP-specific tools for HTTPS-compatible ones, and making sure SSL certificates are handled correctly.

Let's start with common code examples #

If you were using Python's urllib for HTTP: #

Here's what your old HTTP code might look like:

import urllib.request

response = urllib.request.urlopen("http://your-custom-domain.com/file.txt")
data = response.read()
print(data)

Modify it for HTTPS: #

Luckily, urllib supports HTTPS out of the box for valid, trusted certificates (which your own domain should have if it's properly set up). Just change the URL scheme to https://:

import urllib.request

try:
    response = urllib.request.urlopen("https://your-custom-domain.com/file.txt")
    data = response.read()
    print(data)
except urllib.error.URLError as e:
    print(f"Error: {e.reason}")

Even simpler: Use the requests library #

If you're open to using a more user-friendly library, requests makes HTTPS trivial—no extra work needed for valid certificates:

import requests

try:
    response = requests.get("https://your-custom-domain.com/file.txt")
    response.raise_for_status()  # Raises an error for HTTP status codes like 404/500
    print(response.text)
except requests.exceptions.RequestException as e:
    print(f"Error: {e}")

Handling edge cases (if needed) #

• Self-signed certificates: If your domain uses a self-signed cert (not recommended for production), you can disable SSL verification (but only do this for testing!):
  For requests:

  response = requests.get("https://your-custom-domain.com/file.txt", verify=False)
  

  For urllib, you'll need to create a custom SSL context:

  import urllib.request
  import ssl
  
  ctx = ssl.create_default_context()
  ctx.check_hostname = False
  ctx.verify_mode = ssl.CERT_NONE
  
  response = urllib.request.urlopen("https://your-custom-domain.com/file.txt", context=ctx)
  

Key takeaways #

• Swap http:// with https:// in your request URL
• Use libraries that natively support HTTPS (most modern HTTP libraries do)
• Ensure your domain has a valid, trusted SSL certificate (from a CA like Let's Encrypt) to avoid verification errors

内容的提问来源于stack exchange，提问作者Sean