diff --git a/twidere/src/main/kotlin/org/mariotaku/twidere/activity/WebLinkHandlerActivity.kt b/twidere/src/main/kotlin/org/mariotaku/twidere/activity/WebLinkHandlerActivity.kt
index f8deaaf4b..800468550 100644
--- a/twidere/src/main/kotlin/org/mariotaku/twidere/activity/WebLinkHandlerActivity.kt
+++ b/twidere/src/main/kotlin/org/mariotaku/twidere/activity/WebLinkHandlerActivity.kt
@@ -15,9 +15,9 @@ import org.mariotaku.twidere.app.TwidereApplication
 import org.mariotaku.twidere.model.UserKey
 import org.mariotaku.twidere.util.Analyzer
 import org.mariotaku.twidere.util.IntentUtils
+import org.mariotaku.twidere.util.ThemeUtils
 import org.mariotaku.twidere.util.Utils
 import org.mariotaku.twidere.util.dagger.DependencyHolder
-import org.mariotaku.twidere.util.ThemeUtils
 import java.util.*
 
 class WebLinkHandlerActivity : Activity() {
@@ -335,6 +335,12 @@ class WebLinkHandlerActivity : Activity() {
                     }
                 }
             }
+            "redirect" -> {
+                val url = uri.getQueryParameter("url")?.let(Uri::parse) ?: return Pair(null, false)
+                val preferences = DependencyHolder.get(this).preferences
+                val (intent, _) = IntentUtils.browse(this, preferences, userTheme, url, false)
+                return Pair(intent, true)
+            }
         }
         return Pair(null, false)
     }
diff --git a/twidere/src/main/kotlin/org/mariotaku/twidere/fragment/UserQrDialogFragment.kt b/twidere/src/main/kotlin/org/mariotaku/twidere/fragment/UserQrDialogFragment.kt
index 38861c251..a4090661d 100644
--- a/twidere/src/main/kotlin/org/mariotaku/twidere/fragment/UserQrDialogFragment.kt
+++ b/twidere/src/main/kotlin/org/mariotaku/twidere/fragment/UserQrDialogFragment.kt
@@ -80,7 +80,7 @@ class UserQrDialogFragment : BaseDialogFragment() {
             fragment.qrView.visibility = View.INVISIBLE
             fragment.qrProgress.visibility = View.VISIBLE
         } and loadProfileImage().then { drawable ->
-            val fragment = weakThis.get() ?: throw InterruptedException()
+            val fragment = weakThis.get()?.takeIf { it.context != null } ?: throw InterruptedException()
             val background = Bitmap.createBitmap(drawable.intrinsicWidth, drawable.intrinsicHeight,
                     Bitmap.Config.ARGB_8888)
             val canvas = Canvas(background)
@@ -99,7 +99,7 @@ class UserQrDialogFragment : BaseDialogFragment() {
             background.recycle()
             return@then result
         }.successUi { bitmap ->
-            val fragment = weakThis.get()?.takeIf { it.view != null } ?: return@successUi
+            val fragment = weakThis.get()?.takeIf { it.context != null && it.view != null } ?: return@successUi
             fragment.qrView.visibility = View.VISIBLE
             fragment.qrProgress.visibility = View.GONE
             fragment.qrView.setImageDrawable(BitmapDrawable(fragment.resources, bitmap).apply {