javascript - jQuery not working in background.js of chrome extension -


i making chrome extension. here manifest:

                {             "manifest_version": 2,             "name": "roblox-r",             "version": "1",             "description": "an extension automatically trade currencies.",             "browser_action": {                 "default_icon": "icon.png",                 "default_popup": "popup.html"                 },             "permissions": [                 "<all_urls>"             ],             "content_scripts": [{                 "matches": ["<all_urls>"],                 "js": [ "jquery.min.js" ]             }],             "background": { "scripts": ["background.js"] }             }

jquery.min.js not load use background.js. know because if go background page of script while it's running, says, "uncaught referenceerror: $ not defined". how fix this? thanks.

the content_scripts property intended link scripts , stylesheets injected in context of webpage extension active. if want use jquery in background page, should add jquery.min.js scripts property of background: 

"background": {     "scripts": ["jquery.min.js", "background.js"] }

hope helps.


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