title: Ionic2 InAppBrowser
body: <p>Hi I want to put a button in my page when clicked it will launch the website of the given item. However I got a problem and I don't know how to fix it. I just followed a recent tutorial online but unfortunately it didn't worked for me. </p>
  
  <p>1.) This is the error appearing when I click on the button, circled in the image.
  <a href="https://i.stack.imgur.com/qHoQt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qHoQt.png" alt="enter image description here"></a></p>
  
  <p>2.) Declaration of the constructor in the js file
  <a href="https://i.stack.imgur.com/WA81t.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WA81t.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/Umbaf.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Umbaf.png" alt="enter image description here"></a></p>
  
  <p>3.) html button
  <a href="https://i.stack.imgur.com/4PMxL.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4PMxL.png" alt="enter image description here"></a></p>
  
  <p>4.) App version
  <a href="https://i.stack.imgur.com/VI2bG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VI2bG.png" alt="enter image description here"></a>
  <a href="https://i.stack.imgur.com/CIBIl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CIBIl.png" alt="enter image description here"></a></p>