When loading the web interface after an extended period of disuse (e.g. a day or more since the last time it was loaded), my web browser (Firefox for Linux) seems to have difficulty loading /static/vendor/font-awesome-3.2.1/fonts/fontawesome-webfont.woff. It feels like the web server on my RPi 3B+ just takes a lot longer to load that particular URL.
The end result is that some plugins that use those fonts stall. In particular, OctoPrint-TPLinkSmartplug (see [BUG]: Lightbulb icon takes a long time to load · Issue #197 · jneilliii/OctoPrint-TPLinkSmartplug · GitHub).
I understand that this probably isn't an OctoPrint bug per se. I assume the web server configuration is part of OctoPi, it could be a limitation of my RPi, or it could even be a browser configuration.
Raspberry Pi 3 Model B Plus Rev 1.3