UI5 (and UI4) create an excessive number of 404 http result codes from images and resources not found. There is no excuse to include references to javascript files that don’t exist (debug.js, en.js), image references to “undefined”, and worse of all the references to _[25|50|75|100] for devices that define min/max values but do not ship with the corresponding “sliding scale” images. For example temperature sensor, thermostats, ip cameras, humidity_sensors, etc.
There should be a way to specify for a device that the device does not support multiple version of it’s “flashicon” image based on min/max values. 404s are resource and latency intensive and cause many poor performance.
Fire up the firebug or chrome/safari web inspector and hit the console tab. Loading a page should not result in all these 404 errors.