Even though the PhantomJS is deprecated, there still many projects are using it.
After I installed the Handsontable@8.0.0-beta.2, the PhantomJS (2.1.1) shows the following error and all the tests of PhantomJS are skipped.
PhantomJS 2.1.1 ERROR
TypeError: Attempted to assign to readonly property.
Not sure if such error was caused by some changes in the TypeScript of Hansontable.
This was working on beta.1