Embedded application scrolls browser by taking focus

I’m facing this problem, also described here (as fixed):


On the page that embeddes Vaadin I use an iframe:


... [/code]While declaring the WebSevlet in my UI class I tried to use the 'standalone' parameter but it has no effect. [code] ... @WebServlet(value = "/*", asyncSupported = true, initParams = { @WebInitParam(name = "productionMode", value = "false"), @WebInitParam(name = "ui", value = "UniversumUI.class"), @WebInitParam(name = "standalone", value = "true") }) ... [/code]I use Vaadin 7.4.8. This problem occurs in firefox and internetexplorer.

Can somebody tell me what I’m doing wrong?

Thank you for your help.