VectorObject mouseover event problems with IE 9 and 10

[Mikko Laitamäki]

Hi,
 I am producing tooltips for vector objects by handling mouse-events.

With IE11, FF and Chrome  all seems to work fine, and even with vml ie8 too.
But IE9 and 10, i  got problems, also reproducible  by ie11 emulator mode.

This apperas  in console with IE11 in iIE9 emulation mode when hovering mouse
over  vectorobject with hoverlistener.

Mon Nov 30 10:27:15 GMT+200 2015 com.vaadin.client.ApplicationConfiguration
SEVERE: (TypeError) : Object doesn't support property or method 'contains'com.google.gwt.core.client.JavaScriptException: (TypeError) : Object doesn't support property or method 'contains'
    at Unknown.com_google_gwt_lang_Exceptions_wrap__Ljava_lang_Object_2Ljava_lang_Object_2(Unknown Source)
    at Unknown.com_google_gwt_core_client_impl_Impl_entry0__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(Unknown Source)
    at Unknown.anonymous(Unknown Source)


found some reports of ie9 svg mouseover oddities like this
 http://stackoverflow.com/questions/28156050/svg-path-mouseover-behaving-incorrectly-in-ie

but frankly, i have no idea how to apply those fixes
http://stackoverflow.com/questions/16983781/svg-map-not-working-well-in-internet-explorer-10/28435700#28435700

any adwise?


- Mikko