Just a quick heads-up for those of us working with GWT applications in hosted mode. If you have a breakpoint in your GWT code, and you’re debugging in hosted mode, this can affect the normal operation of Internet Explorer. When your GWT app is paused at a breakpoint, it also pauses at least some of the code shared between the GWT browser and IE (they use the same renderer). This has made my IE appear to be hung or crashing, but when execution is started again from the GWT debugger, IE comes back to life. FYI.