The answer to this question works to construct a link to a google calendar event, however, it will not work if you are signed in to more than 1 google account in your browser.
When signed into more than one account, the URL adds parameters like this: .../calendar /b/1/r/ eventedit/... which change depending on which account you're viewing.
Is there any way to construct a link that will work regardless of how many google accounts are logged in on the browser?