The latest project revision, just for the relevant SDK version of the next upgrade, Target also upgraded from 19 to 21.
Unexpectedly, the images that were loaded in the webview have all become white, even if the default picture is not displayed.
After some testing, it was found that the target version was the result.
Just stackoverflow on the problem http://stackoverflow.com/questions/28626433/android-webview-blocks-redirect-from-https-to-http
In fact, after the API 20 WebView to mixed content, when requesting a non-secure connection from a secure link will block the non-security request, if you need to remove the restrictions manually set
if (Build.VERSION.SDK_INT >=) { webview.getsettings (). Setmixedcontentmode (Websettings.mixed_content_ Always_allow); }
Official Document Description
Https://developer.android.com/about/versions/android-5.0.html
WebView redirect HTTPS to http