Internet explorer support: tables not displayed

Hello,

I have a problem with Internet Explorer 11. The tables don't get displayed.
I uncommented all in src/polyfill.ts and I added the following packages in package.json as suggested in [issue 514](https://github.com/akveo/ng2-smart-table/issues/514)
dependencies:
"array.from": "^1.0.3",
"babel-polyfill": "^6.23.0",
"babel-runtime": "^6.23.0",

devDependencies:
"babel-plugin-transform-runtime": "^6.23.0",

but it didn't fix the problem.
ng2-smart-table version: 1.2.2 (I also tried with previous versions like 1.0.3).
angular version: 4.4.6

Thanks in advance