UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36

Steps to reproduce the problem:
Create test extension:

manifest.json:
{
  "manifest_version": 2,
  "name": "test",
  "permissions": ["activeTab", "contextMenus"],
  "background": {
    "scripts": ["eventPage.js"],
    "persistent": false
  },
  "version": "0"
}

eventPage.js:
chrome.contextMenus.create({
    'title': 'Click',
    'id': 'root',
    'contexts': ['all']
})

chrome.contextMenus.onClicked.addListener(_ => {
    chrome.tabs.executeScript({
        'code': 'console.log("Message from event page")'
    });
});

Open some random Google Doc, for example https://docs.google.com/document/d/1lA3fL5ScQut_4aDd0SBzxTJSKAlMsDobLsijLnh_zms/edit?usp=sharing

Open Devtools -> Console.

Context menu on page: 'Click'.

What is the expected behavior?
Message in JS console: 'Message from event page'.

What went wrong?
Error in JS Console of the event page:

`Unchecked runtime.lastError while running tabs.executeScript: Cannot access contents of the page. Extension manifest must request permission to access the respective host.`

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 65.0.3325.181  Channel: n/a
OS Version: OS X 10.13.4
Flash Version: 

The same code works as expected in Firefox.