Added proxy support

- Minor code change to prevent bug

decrypt.py

@@ -36,7 +36,7 @@ def decrypt_content(in_pssh: str = None, license_url: str = None, headers: dict
     # Generate the challenge
     challenge = cdm.get_license_challenge(session_id, pssh)
 
-    if proxy:
+    if proxy is not None:
         # send license challenge
         license = requests.post(
             url=license_url,

main.py

@@ -31,6 +31,8 @@ def post_endpoint():
     if data['proxy'] != None:
         proxy = data['proxy']
         print(proxy)
+    else:
+        proxy = None
 
     # Format the headers