Flaky test: SeleniumJavaScriptTest.shouldGenerateIDsOnComplexSeriesOfEvents()

[asnare]

This test is a bit flaky due to a race condition. The pages load the script with defer/async. Although most actions in the test include a wait to ensure the script loads prior to proceeding, the driver.findElement(By.id("custom")).click() action has no such guard. This means it presumably can sometimes run prior to the script loading. In this situation the event behind that action won't be delivered and the test will fail.

The fix for this bug is to ensure the divolte JS module is available before the action fires.