title: How to show images in webview_flutter plugin?
body: <p>I have used the webview_flutter package to show a website (<a href="https://sprokkelbos.nl/collectie/" rel="nofollow noreferrer">https://sprokkelbos.nl/collectie/</a>) in my app. The page stays blank when using the https url. If using the http url the website is shown but without the images. The url is using https and the images are also with https (<a href="https://sprokkelbos.nl/wp-content/uploads/2018/01/HB1_3221.jpg" rel="nofollow noreferrer">https://sprokkelbos.nl/wp-content/uploads/2018/01/HB1_3221.jpg</a>).</p>
  
  <p>When opening chrome in the simulation then the url is opening and the images are shown. Only inside the app in the webview it is not shown. I tried other packages in flutter but they all give the same result. The standard initial url used is flutter.io and this website is always working in the webview inside the app.</p>
  
  <p>Is there a setting somewhere in the code of the app to allow the images to be shown? Is this an SSL issue? How to solve this problem?</p>