diff --git a/perimeterx/middleware.py b/perimeterx/middleware.py
index 2e016ed..87f0995 100644
--- a/perimeterx/middleware.py
+++ b/perimeterx/middleware.py
@@ -69,7 +69,7 @@ def _verify(self, environ, start_response):
             return self.app(environ, start_response)
 
     def handle_verification(self, ctx, config, environ, start_response):
-        score = ctx.get('score', -1)
+        score = ctx.get('risk_score', -1)
         result = None
         headers = None
         status = None
diff --git a/perimeterx/px_context.py b/perimeterx/px_context.py
index e21da96..ecd29b8 100644
--- a/perimeterx/px_context.py
+++ b/perimeterx/px_context.py
@@ -28,7 +28,7 @@ def build_context(environ, config):
             if len(protocol_split) > 1:
                 http_version = protocol_split[1]
         if key == 'CONTENT_TYPE' or key == 'CONTENT_LENGTH':
-            headers['Content-type'.replace('_', '-')] = environ.get(key)
+            headers[key.replace('_', '-').lower()] = environ.get(key)
 
 
     cookies = Cookie.SimpleCookie(environ.get('HTTP_COOKIE', ''))
diff --git a/perimeterx/px_cookie_validator.py b/perimeterx/px_cookie_validator.py
index 3a6a00a..9f3f68c 100644
--- a/perimeterx/px_cookie_validator.py
+++ b/perimeterx/px_cookie_validator.py
@@ -38,7 +38,7 @@ def verify(ctx, config):
         if px_cookie.is_high_score():
             ctx['block_reason'] = 'cookie_high_score'
             logger.debug('Cookie with high score: ' + str(ctx['risk_score']))
-            return True
+            return False
 
         if px_cookie.is_cookie_expired():
             ctx['s2s_call_reason'] = 'cookie_expired'
diff --git a/perimeterx/px_httpc.py b/perimeterx/px_httpc.py
index c31fbb6..8e189b6 100644
--- a/perimeterx/px_httpc.py
+++ b/perimeterx/px_httpc.py
@@ -7,9 +7,9 @@ def send(full_url, body, headers, config, method):
     try:
         start = time.time()
         if method == 'GET':
-            response = requests.get(url=full_url, headers=headers, timeout=config.api_timeout)
+            response = requests.get(url='https://' + full_url, headers=headers, timeout=500, stream=True)
         else:
-            response = requests.post(url=full_url, headers=headers, data=body, timeout=config.api_timeout)
+            response = requests.post(url='https://' + full_url, headers=headers, data=body, timeout=config.api_timeout)
 
         if response.status_code >= 400:
             logger.debug('PerimeterX server call failed')
diff --git a/perimeterx/px_proxy_handler.py b/perimeterx/px_proxy_handler.py
index f0169fb..884e54e 100644
--- a/perimeterx/px_proxy_handler.py
+++ b/perimeterx/px_proxy_handler.py
@@ -50,11 +50,14 @@ def send_reverse_client_request(self, config, context, start_response):
                    px_constants.ENFORCER_TRUE_IP_HEADER: context.get('ip')}
         filtered_headers = px_utils.handle_proxy_headers(context.get('headers'), context.get('ip'))
         filtered_headers = px_utils.merge_two_dicts(filtered_headers, headers)
+        del filtered_headers['content-length']
+        del filtered_headers['content-type']
         response = px_httpc.send(full_url=px_constants.CLIENT_HOST + client_request_uri, body='',
                                  headers=filtered_headers, config=config, method='GET')
 
         self.handle_proxy_response(response, start_response)
-        return response.content
+        return response.raw.read()
+      
 
     def send_reverse_xhr_request(self, config, context, start_response, body):
         uri = context.get('uri')
@@ -119,11 +122,12 @@ def send_reverse_captcha_request(self, config, context, start_response):
                    px_constants.ENFORCER_TRUE_IP_HEADER: context.get('ip')}
         filtered_headers = px_utils.handle_proxy_headers(context.get('headers'), context.get('ip'))
         filtered_headers = px_utils.merge_two_dicts(filtered_headers, headers)
+        del filtered_headers['content-length']
+        del filtered_headers['content-type']
         self._logger.debug('Forwarding request from {} to client at {}{}'.format(context.get('uri').lower(), host, uri))
         response = px_httpc.send(full_url=host + uri, body='',
                                  headers=filtered_headers, config=config, method='GET')
         self.handle_proxy_response(response, start_response)
-        return response.content
-
+        return response.raw.read()