German bekomme kein WebView1_PageFinished bei android:targetSdkVersion>"14"

AddManifestText(
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="14"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")

Sub Globals
    Dim WebViewExtras1 As WebViewExtras
    Dim WebView1 As WebView
    Dim Button1 As Button
End Sub

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("map")
    WebViewExtras1.addJavascriptInterface(WebView1, "B4A")
End Sub

Sub Button1_Click
    WebView1.LoadUrl("http://www.google.de/")
End Sub

Sub WebView1_PageFinished (Url As String)
    Dim Javascript As String = "B4A.CallSub('Process_HTML', false, document.documentElement.outerHTML)"
    WebViewExtras1.executeJavascript(WebView1, Javascript)
'    Log("PageFinished: "&Javascript)
End Sub

Sub Process_HTML(Html As String)
    Log(Html)
    'WebText1 = Html.ToLowerCase
End Sub