Which installed Chrome extension gives error alert?

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On load of some page I getting alert (SyntaxError: "[object Object]" is not valid JSON) But in anonymous mode all clear, so it given by Chrome extensions. Is there a fast way to check what it is, other then going by exclusion method?

1 Answers

First you have to check your extension in chrome://extension and see if it shows any error on pointed location enter image description here

if any error button shown here! than click on it to resolve error!

and [object object] is not valid json!

you can write only one value in these brackets []:

//its a right json format

"objects":["objects"]

and all of this json writes in this two brackets! {}

Here is Example of My Extension Manifest file!

{
  "name": "Notify!",
  "description": "A Google Chrome extension!",
  "version": "1.7",
  "manifest_version": 3,

  "icons": {
    "128": "/assets/icons/128.png",
    "48": "/assets/icons/128.png",
    "16": "/assets/icons/128.png"
    },

"action": {
"default_icon": "/assets/icons/128.png",
"default_popup": "popup.html",
"default_title": "It's my title"
},

"background":{
"script": ["eventPage.js"]
//"service_worker": false
},
"content_scripts":[
{
"matches": ["http://*.google.com/*"],
"js": ["content.js","jquery-3.6.1.min.js"]

}
],

"permissions": [
    "tabs",
    "http://*.google.com/*"
]

}
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