The official way to import the Cesium.js is to use <script>.But due to the large files, we must use AMD etc.
How to use require or import (ES6) after npm intall?
app-b80b692….js:476 Uncaught TypeError: Cannot assign to read only property ‘apply’ of function ‘function c®{var o=n(r,{}),s=n(o.cull,{}),c=n(o.polygonOffset,{}),u=n(o.scissorTest,{}),d=n(u.rectangle,{}),h=……]}’(…)