I need to implement something that shows something (like a barber shop bar or any rotating indicator) and blocks the page until the page load is completeted, then it disappears.
Unfortunately, our examples cannot cover any possible business scenario. We try to add as many examples as possible, but every application has different requirements. If you want to put a progress bar in a modal, you can combine it with our smart-window component.
Please visit this: https://codepen.io/svetoslavb04/pen/RwJavXN
There you can see a very very very basic implementation of a loader modal.
You can implement your own technique for a loader and put our progress bar in it.