Frameloader fetching extra UA String - UAProfURL

Question

I'll be using my app, loading html pages into the webview, and sometimes the WebView seems to take a lot longer to load a page... when it does that, I see the message spammed to logcat :

09-15 11:15:56.880: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.880: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.880: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.880: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.880: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.880: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.880: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.880: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.890: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL
09-15 11:15:56.900: D/FRAMELOADER ISSUE :(13523): Frameloader fetching extra UA String - UAProfURL

What does it mean ? How can I avoid it ?

Answer 1

UAProf - User Agent Profile describes the capabilities of a device, and it could be useful for AdMob network to return a more suitable advertising.
https://en.wikipedia.org/wiki/UAProf

UAProfUrl points to XML describing such device properties. Basically UAProf is generated by Android Webkit, and WebView should take it from here.

This info depends on build properties from /system.build.prop, and maybe for some device it's not available, or it's a Webkit issue.

This property could be manually set by HTTP-header X-Wap-Profile. Here is some profiles lists http://validator.openmobilealliance.org/cgi/validation/profiles.html http://delicon.sourceforge.net/profiles.html

I'm not sure this info is real used by AdMob (or other sites), so we can try to set some fake.
For example, this is profile for Galaxy Nexus

Map<String, String> headers = new HashMap<String, String>();
headers.put("X-Wap-Profile", "http://wap.samsungmobile.com/uaprof/galaxynexus.xml");
webView.loadUrl("url", headers);