content script: init
content-script.js:24 content script: event received
content-script.js:25 MessageEvent
main-e65cefb6fc53476f7f62.js:1 Uncaught (in promise) TypeError: Cannot read property 'content' of null
    at main-e65cefb6fc53476f7f62.js:1
    at main-e65cefb6fc53476f7f62.js:1
    at Array.forEach (<anonymous>)
    at main-e65cefb6fc53476f7f62.js:1
Uncaught (in promise) TypeError: Cannot read property 'content' of null
    at main-e65cefb6fc53476f7f62.js:1
    at main-e65cefb6fc53476f7f62.js:1
    at Array.forEach (<anonymous>)
    at main-e65cefb6fc53476f7f62.js:1
GET https://api.reallyconfused.co/roadmap/get/from-c 404
Uncaught (in promise) Error: Request failed with status code 404
    at LYNF.e.exports (8d520aa6107b9a08742224b3ed7280b3e93352a5.b46c6b8313e93a0f80ca.js:1)
    at Rn+g.e.exports (8d520aa6107b9a08742224b3ed7280b3e93352a5.b46c6b8313e93a0f80ca.js:1)
    at XMLHttpRequest.l.onreadystatechange (8d520aa6107b9a08742224b3ed7280b3e93352a5.b46c6b8313e93a0f80ca.js:1)
content script: event received
content-script.js:25 MessageEvent