chrome.extension.getBackgroundPage() returns null after awhile

Question

When my chrome extension loads on chrome startup, everything seems to be ok and chrome.extension.getBackgroundPage() returns the right value (lunched from popup.js). But aft

Answer 1

Change your background(Event Page) to a real background Page.

Modify your manifest file from

"background": {
        "scripts": [
            "background.js"
        ],
        "persistent": false
    }

to

"background": {
        "scripts": [
            "background.js"
        ],
        "persistent": true
    }

Event pages are very similar to background pages, with one important difference: event pages are loaded only when they are needed. When the event page is not actively doing something, it is unloaded, freeing memory and other system resources.

Reference

• Difference between Event and Background Page