Chrome 58 has deprecated a lot of the chrome.extension API in favor of the chrome.runtime API. Mostly chrome.extension.getURL and chrome.extension.onMessage were the issue. The latest version of Chrome broke the chrome.extension.onMessage call which manifested as Initializer not defined in the console.
Chrome 58 has deprecated a lot of the chrome.extension API in favor of the chrome.runtime API. Mostly chrome.extension.getURL and chrome.extension.onMessage were the issue. The latest version of Chrome broke the chrome.extension.onMessage call which manifested as Initializer not defined in the console.