version: WebkitGTK+ 1.2.7 configure flags: --with-unicode-backend=glib --with-target=win32 --enable-web-sockets --enable-3D-transforms test page: www.google.co.jp to reproduce: Just wait some seconds after the page fully loaded.
A log from a profiler would be extremely helpful to debugging this issue. Do you see it with the ICU backend as well?
Created attachment 82544 [details] google.co.id profiling (normal)
Created attachment 82546 [details] google.co.jp profiling (50% CPU)
This happened these configurations too: icu + freetype glib + pango Add 20 seconds of profiling record screenshots google.co.jp got stuck on anonymous function calls? line:49 b,c,d,a].join("");Ba="/complete/search"+d;Ea="/complete/deleteitems"+d;Ga=fb(G);n.GECKO&&google.listen(window,"pageshow",function(h){if(h.persisted){P.value="f";Q.value=G.value}});if(p)Ka=window.setInterval(function(){var h=G.value;h!=x&&gb(0);x=h},10);hb();sa="https:"==document.location.protocol;e=pa||e&&e.length||sa;ra=["http",e?"s":"","://"].join("");(new Image).src=ra+"clients1.google.co.jp/generate_204";
Created attachment 82547 [details] downloaded javascript file
I don't know what you meant by a profiler, how to do it? note that I can't compile debug build (always out of memory on ld.exe)
Can't reproduce this in version 1.6.1