def apply_hack_to_avoid_problems_with_caching(self):
if hasattr(self.js_context.document.head, 'childNodes'):
for element in self.js_context.document.head.childNodes.values():
if hasattr(element, 'src') and element.src:
url = extend_querystring(element.src, {'query_id': random_hash()[:5]})
element.src = url
elif hasattr(element, 'href') and element.href:
url = extend_querystring(element.href, {'query_id': random_hash()[:5]})
element.href = url
return False
def resource_request_cb(self, view, frame, resource, request, response):
uri = request.get_property('uri')
uri = extend_querystring(uri, {'instance': self.widget_ref().instance_id})
request.set_property('uri', uri)