[laravel] How to fix 'Unchecked runtime.lastError: The message port closed before a response was received' chrome issue?

I'm using VueJS and Laravel for my project. This issue started to show lately and it shows even in the old git branches.

This error only shows in Chrome browser.

This question is related to laravel google-chrome vue.js

The answer is


I have answered on this.

In my case, the problem was because of Video Downloader professional and AdBlock

In short, this problem occurs due to some google chrome plugins


In my case it was OneTab chrome extension.


If you go to chrome://extensions/, you can just toggle each extension one at a time and see which one is actually triggering the issue.

Once you toggle the extension off, refresh the page where you are seeing the error and wiggle the mouse around, or click. Mouse actions are the things that are throwing errors.

So I was able to pinpoint which extension was actually causing the issue and disable it.


If error reason is extension use incognito Ctrl+Shift+N. In incognito mode Chrome does not have extensions.

UPD. If you need some extension in incognito mode e.g. ReduxDevTools or any other, in extension settings turn on "Allow in incognito"


In my case it was from "Automatic Backlink Checker" extension. Maybe this will help some other users to fix their problem easier. I went from disabling all of the extensions at once to disabling them one by one. This way the mole.

Regards


Looks like the NoCoffee Vision Simulator extension for Chrome will also cause this error. Just adding it as a prospective cause for people looking in their own instance.


This error is generally caused by one of your Chrome extensions.

I recommend installing this One-Click Extension Disabler, I use it with the keyboard shortcut COMMAND (?) + SHIFT (?) + D — to quickly disable/enable all my extensions.

Once the extensions are disabled this error message should go away.

Peace! ??


Post is rather old and not closely related to Chrome extensions development, but let it be here.

I had same problem when responding on message in callback. The solution is to return true in background message listener.

Here is simple example of background.js. It responses to any message from popup.js.

chrome.runtime.onMessage.addListener(function(rq, sender, sendResponse) {
    // setTimeout to simulate any callback (even from storage.sync)
    setTimeout(function() {
        sendResponse({status: true});
    }, 1);
    // return true;  // uncomment this line to fix error
});

Here is popup.js, which sends message on popup. You'll get exceptions until you un-comment "return true" line in background.js file.

document.addEventListener("DOMContentLoaded", () => {
    chrome.extension.sendMessage({action: "ping"}, function(resp) {
        console.log(JSON.stringify(resp));
    });
});

manifest.json, just in case :) Pay attention on alarm permissions section!

{
  "name": "TestMessages",
  "version": "0.1.0",
  "manifest_version": 2,
  "browser_action": {
    "default_popup": "src/popup.html"
  },
  "background": {
    "scripts": ["src/background.js"],
    "persistent": false
  },
  "permissions": [
    "alarms"
  ]
}

In case you're an extension developer who googled your way here trying to stop causing this error:

The issue isn't CORB (as another answer here states) as blocked CORs manifest as warnings like -

Cross-Origin Read Blocking (CORB) blocked cross-origin response https://www.example.com/example.html with MIME type text/html. See https://www.chromestatus.com/feature/5629709824032768 for more details.

The issue is most likely a mishandled async response to runtime.sendMessage. As MDN says:

To send an asynchronous response, there are two options:

  • return true from the event listener. This keeps the sendResponse function valid after the listener returns, so you can call it later.
  • return a Promise from the event listener, and resolve when you have the response (or reject it in case of an error).

When you send an async response but fail to use either of these mechanisms, the supplied sendResponse argument to sendMessage goes out of scope and the result is exactly as the error message says: your message port (the message-passing apparatus) is closed before the response was received.

Webextension-polyfill authors have already written about it in June 2018.

So bottom line, if you see your extension causing these errors - inspect closely all your onMessage listeners. Some of them probably need to start returning promises (marking them as async should be enough). [Thanks @vdegenne]


In my case it was a breakpoint set in my own page source. If I removed or disabled the breakpoint then the error would clear up.

The breakpoint was in a moderately complex chunk of rendering code. Other breakpoints in different parts of the page had no such effect. I was not able to work out a simple test case that always trigger this error.


I disabled Chrome extension "Coupons at Checkout" and this problem was solved.


Disable if there is any anti-virus extension is installed on the browser. In my case, the anti-virus extension was the culprit.


For me it was Auto Tab Discard, which throws that error on pinned tabs. I created a bug report, https://github.com/rNeomy/auto-tab-discard/issues/101.


For those coming here to debug this error in Chrome 73, one possibility is because Chrome 73 onwards disallows cross-origin requests in content scripts.

More reading:

  1. https://www.chromestatus.com/feature/5629709824032768
  2. https://www.chromium.org/Home/chromium-security/extension-content-script-fetches

This affects many Chrome extension authors, who now need to scramble to fix the extensions because Chrome thinks "Our data shows that most extensions will not be affected by this change."

(it has nothing to do with your app code)

UPDATE: I fixed the CORs issue but I still see this error. I suspect it is Chrome's fault here.


I was sending console log data from one tab to another and did not really needed the first console. However the error message did bug me so I right clicked and selected "don't show messages from x website". Maybe this is the easiest fix:)


Make sure you are using the correct syntax.

We should use the sendMessage() method after listening it.

Here is a simple example of contentScript.js It sendRequest to app.js.

contentScript.js

chrome.extension.sendRequest({
    title: 'giveSomeTitle', params: paramsToSend
  }, function(result) { 
    // Do Some action
});

app.js

chrome.extension.onRequest.addListener( function(message, sender, 
 sendResponse) {
  if(message.title === 'giveSomeTitle'){
    // Do some action with message.params
    sendResponse(true);
  }
});

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