Update crow to improve security

Change-Id: I86146edde21bac89e6cc30afdd79690e2b0adadd
diff --git a/include/security_headers_middleware.hpp b/include/security_headers_middleware.hpp
index e12395a..19369f9 100644
--- a/include/security_headers_middleware.hpp
+++ b/include/security_headers_middleware.hpp
@@ -20,6 +20,12 @@
 static const char* content_security_key = "X-Content-Security-Policy";
 static const char* content_security_value = "default-src 'self'";
 
+static const char* pragma_key = "Pragma";
+static const char* pragma_value = "no-cache";
+
+static const char* cache_control_key = "Cache-Control";
+static const char* cache_control_value = "no-Store,no-Cache";
+
 struct SecurityHeadersMiddleware {
   struct context {};
 
@@ -37,8 +43,8 @@
     res.add_header(xframe_key, xframe_value);
     res.add_header(xss_key, xss_value);
     res.add_header(content_security_key, content_security_value);
-    res.add_header("Access-Control-Allow-Origin", "http://localhost:8085");
-    res.add_header("Access-Control-Allow-Credentials", "true");
+    res.add_header(pragma_key, pragma_value);
+    res.add_header(cache_control_key, cache_control_value);
   }
 };
 }  // namespace crow
diff --git a/include/ssl_key_handler.hpp b/include/ssl_key_handler.hpp
index 2a1a852..ef512e6 100644
--- a/include/ssl_key_handler.hpp
+++ b/include/ssl_key_handler.hpp
@@ -4,7 +4,6 @@
 #include <openssl/bio.h>
 #include <openssl/dh.h>
 #include <openssl/dsa.h>
-#include <openssl/dsa.h>
 #include <openssl/err.h>
 #include <openssl/evp.h>
 #include <openssl/pem.h>
@@ -304,7 +303,7 @@
   std::string aes_only_ciphers = "AES128+EECDH:AES128+EDH:!aNULL:!eNULL";
 
   if (SSL_CTX_set_cipher_list(m_ssl_context.native_handle(),
-                              mozilla_compatibility_ciphers.c_str()) != 1) {
+                              mozilla_modern_ciphers.c_str()) != 1) {
     CROW_LOG_ERROR << "Error setting cipher list\n";
   }
   return m_ssl_context;
diff --git a/include/webassets.hpp b/include/webassets.hpp
index 3afa61f..6fd0d60 100644
--- a/include/webassets.hpp
+++ b/include/webassets.hpp
@@ -87,7 +87,7 @@
           }
         }
       }
-      app.route_dynamic(std::string(webpath.string()))(
+      app.route_dynamic(webpath.string())(
           [is_gzip, absolute_path_str, content_type](const crow::request& req,
                                                      crow::response& res) {
             static const char* content_type_string = "Content-Type";