Add host headers to pleroma

src/freedombone-app-pleroma

           echo '  location / {'; } >> "$pleroma_nginx_site"
         function_check nginx_limits
         nginx_limits "$PLEROMA_DOMAIN_NAME" '15m'
-        { echo '    proxy_http_version 1.1;';
+        { echo "    add_header 'Access-Control-Allow-Origin' '*';";
+          echo '    proxy_http_version 1.1;';
           echo "    proxy_set_header Upgrade \$http_upgrade;";
           echo '    proxy_set_header Connection "upgrade";';
+          echo "    proxy_set_header Host \$http_host;";
+          echo '';
           echo "    proxy_pass http://localhost:$PLEROMA_PORT;";
           echo '  }';
           echo '';
       echo '  location / {'; } >> "$pleroma_nginx_site"
     function_check nginx_limits
     nginx_limits "$PLEROMA_DOMAIN_NAME" '15m'
-    { echo '      proxy_http_version 1.1;';
+    { echo "      add_header 'Access-Control-Allow-Origin' '*';";
+      echo '      proxy_http_version 1.1;';
       echo "      proxy_set_header Upgrade \$http_upgrade;";
       echo '      proxy_set_header Connection "upgrade";';
+      echo "      proxy_set_header Host \$http_host;";
+      echo '';
       echo "      proxy_pass http://localhost:$PLEROMA_PORT;";
       echo '  }';
       echo '';