tests: Try to reconnect to websocket once every second if the connection was closed #363
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When we run integration tests, the browser will get started and a new connection to a websocket will be established. If the test is done, the browser will continue to run but the other side will close the websocket. If another test is ran afterwards, it will not be able to establish a connection, because the browser will not try to connect.
This commit makes the browser try to reconnect every second. The messages get stored in a queue while no connection is established and they will get sent once a new connection was established. It might help prevent failed tests when the websocket gets closed for other reasons too.