Retrieving unstable content in Crome extention

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Alex

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Sep 18, 2023, 8:27:23 AM9/18/23

to Chromium Extensions

Hello everyone,

I get content of a downloaded page in Chrome extension. Mostly content is retrieved wholly, but on some pages it returns 39 symbols. And on my observation it doesn't depend on the size of these pages. For instance, I get length of the page https://clockify.me/ in the size of 30475, the page https://clockify.me/time-management-techniques - 39.

manifest.json

{
"name": "Getting Started Example",
"description": "Build an Extension!",
"version": "1.0",
"manifest_version": 3,
"permissions": [
"storage",
"activeTab",
"scripting"
],
"action": {
"default_popup": "popup.html",
"default_icon": {
"16": "images/icon-16.png",
"32": "images/icon-32.png",
"36": "images/icon-36.png"
}
},
"icons": {
"16": "images/icon-16.png",
"32": "images/icon-32.png",
"36": "images/icon-36.png"
}
}

popup.html

<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div id="size"></div>
<script src="popup.js"></script>
</body>
</html>

popup.js

chrome.runtime.onMessage.addListener(function (request, sender) {
if (request.action == "getSource") {
document.getElementById('size').innerHTML = request.source.length;
}
});
chrome.tabs.query({ active: true, currentWindow: true }, tabs => {
chrome.scripting.executeScript({
target: { tabId: tabs[0].id, allFrames: true },
files: ['cscript.js']
});
});

cscript.js

var s = document.documentElement.outerHTML;

chrome.runtime.sendMessage({ action: "getSource", source: s });

Patrick Kettner

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Sep 27, 2023, 3:28:47 PM9/27/23

to Alex, Chromium Extensions

Hi Alex

When you say 39 symbols, do you mean the content length of the html response is 39 characters in length? What is specifically in the 39 symbols? Is it possible the query is hitting a different page than you think?

patrick

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