From e669dc3144bd66e313f0a1ae6903ce6ca27077e9 Mon Sep 17 00:00:00 2001
From: Alessandro Basso <Alessandro.Basso@PeapodDigitalLabs.com>
Date: Wed, 16 Jun 2021 10:34:00 -0400
Subject: [PATCH] Android - Fix for webView window not being destroyed
 correctly causing memory leak
 (https://github.com/apache/cordova-plugin-inappbrowser/issues/290)

---
 src/android/InAppBrowser.java | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/android/InAppBrowser.java b/src/android/InAppBrowser.java
index 479e04cd7..6e44803a7 100644
--- a/src/android/InAppBrowser.java
+++ b/src/android/InAppBrowser.java
@@ -534,6 +534,16 @@ public void onPageFinished(WebView view, String url) {
                             dialog.dismiss();
                             dialog = null;
                         }
+                        
+                        // Fix for webView window not being destroyed correctly causing memory leak
+                        // (https://github.com/apache/cordova-plugin-inappbrowser/issues/290)
+                        if (url.equals(new String("about:blank"))) {
+                            inAppWebView.onPause();
+                            inAppWebView.removeAllViews();
+                            inAppWebView.destroyDrawingCache();
+                            inAppWebView.destroy();
+                            inAppWebView = null;
+                        }
                     }
                 });
                 // NB: From SDK 19: "If you call methods on WebView from any thread