The passphrase wouldn't be included in the repo; that's the purpose of using client-side encryption.

Run this:

  document.getElementById("sidebar-toggle-container").className = document.getElementById("sidebar-toggle-container").className.replace( /(?:^|\s)hasBlockingOverlay(?!\S)/g , '' );
  document.getElementsByClassName("blockingOverlay")[0].remove();

in the browser JS console.

This article is from almost a year ago.

Great game! I wish there was a way to zoom in/out to see more of the map once you control a large area, though.