Leak Root Proxy Bug

[jvilk]

After installing leak root proxies on Loomio, the following error occurs:

http://localhost:3000/client/development/vendor.js:18808:17 Uncaught TypeError: Cannot read property 'call' of undefined
    at HTMLDocument.<anonymous> (http://localhost:3000/client/development/vendor.js:18809:18)
undefined
  http://localhost:3000/client/development/vendor.js:18808:17

This error does not impact BLeak's effectiveness, but does indicate that we are doing something wrong. I should look into this error seriously and see what the root cause is.