Open app browser when a button clicks which is inside an iframe

I am developing an Ionic hybrid mobile application which loads an iframe as a component.

A button inside the iframe opens a new window using some scripts(not accessible) which does not open in mobile app browser.

<button class="price js-btn-booking " data-index="0" aria-label="Select">Rs 14,798</button>

Please help me resolve this issue. I want to open a app browser when the iframe button is clicked.