Remove the "Loading ..." when app starts

[AIMPED]

As already mentioned by @jinnyzor and @monitorcasalab you can use css for this. I used this to show a spinner instead of the “Loading…”:

Change "Loading..." to a spinner

I’ve done this in dash-bootstrap-components docs, see relevant CSS here. The basic idea is to hide the existing spinner by targeting the _dash-loading CSS class, then attach your custom spinner with ::after. In the above example the spinner-border argument to animation is a webkit animation defined by Bootstrap so that exact code won’t work out the box if you’re not using Bootstrap, but the same principle can be applied to other CSS spinners. For example I took one of the spinners from here and…