I used the UIM portal "webcontent" portlet, to show APM webview page inside it, but when it try to open get this error.
Is it possible to configure webview to open inside a frame?
I remember but can"t find a reference right now. WebView adds a header (The X-Frame-Options response header) to the page that forbids to show it in a frame.
You need to configure WebView not to send that header or with a different value (or a web server/proxy in between). See Unable to embed CEM content in Sharepoint Content/Frame
I modified the web.xml file and commented out these lines:
Now the login page can be opened in a frame
but after authenticated, the other pages are not rendered
and remain blank without error message.
Opening outside frame continue to works also after login.