I would like to add a custom favicon to my OpenCPU app. Although I manually set the favicon to be a custom image, it gets override by the default cloud icon from OpenCPU.
OpenCPU overrides the favicon in /var/www/html by its default favicon. This default favicon is stored at /usr/lib/opencpu/rapache/favicon.ico, so you just have to change that file and from now on, it will show your custom favicon.