IE 11 - breaks auto complete drop down

[DeveloperSNx]

[x] bug report => search github for a similar issue or PR before submitting
[ ] support request/question

Notice: feature requests will be ignored, submit a PR if you'd like

Current behavior

When using the autocomplete in IE11 the drop-down does not show up. Worked as expected in chrome. The user cant see any items cause the drop-down does not show up. I saw a similar issue that was fixed by by latest version, but it does not work.

Here a sample-project of me to reproduce the issue: https://github.com/DeveloperSNx/ngx-chips-ie-11

The drop down does not work on the demo site in IE11 aswell (tags accepting only items from an autocomplete).

Expected behavior

The items in the auto complete should be visible to be selected.

Minimal reproduction of the problem with instructions (if applicable)

https://github.com/DeveloperSNx/ngx-chips-ie-11

What do you use to build your app?. Please specify the version

angular-cli 7.3.9

Angular version:

7.2.0

ngx-chips version:

2.0.2

Browser: [all | Chrome XX | Firefox XX | IE XX | Safari XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari | iOS XX UIWebView | iOS XX WKWebView ]

IE 11.1006.17134.0

[poman31]

Having the same issue.