ngx-chips tag-input-dropdown does not show autosuggest in iPhone

Question

I have implemented ngx-chips for an email CC field. It works perfectly in my Android phone using Chrome. But, in iPhone, the autosuggestion does not show up.

<div class="required form-group col-md-12 col-sm-12 col-xs-12" >
    <label class="control-label" for="email.emailCc">CC:</label>
       <tag-input [(ngModel)]="emailList"  [onlyFromAutocomplete]="true" theme='bootstrap'>
        <tag-input-dropdown [autocompleteObservable]="items" [showDropdownIfEmpty]="true" [dynamicUpdate]="false">
        </tag-input-dropdown>
       </tag-input>
 </div>

In Iphone

In Android

Please help.

Answer 1

Added following line in global.scss for IOS to show dropdown content,

div.ng2-dropdown-menu.ng2-dropdown-menu---width--4.ng2-dropdown-menu--open {
  display: block !important; // to display the drop down content
  max-height: 40vh !important;  // for scrolling of suggestion list
}

But still it is not good as it is on android. Scrolling the screen scrolls the list with it.