Chrome Extension doesn't execute all the way - google-chrome-extension

Question

The idea is simple. Open a window and then call chrome.tabs.executeScript on that new window.
Unfortunately, it doesn't do anything besides open a new window.
function openc(url) {
window.open(url);
chrome.tabs.executeScript(null, {file: "removeContent.js"});
console.log("hi");
}
document.addEventListener('DOMContentLoaded', function () {
openc("http://www.asdf.com/");
});

Answer 1

First of all, make sure that you've got the host permissions to operate on the page.
If you always want to run the script on the specific page, it suffices to use only content scripts, by registration via the manifest file:
"content_scripts": [
{
"matches": ["http://example.com/*"],
"js": ["open-asdf.js"]
},
{
"matches": ["http://www.asdf.com/*"],
"js": ["removeContent.js"]
}
],
If you want to dynamically execute a content script for the new page, you should use the chrome.tabs.create method to open the new tab, and insert the script in the callback. These methods can only be used in the extension's process, so make sure that the code is running on the background/event/popup/options/.. page.
chrome.tabs.create({
url: 'http://www.asdf.com/'
}, function(tab) {
chrome.tabs.executeScript(tab.id, {file: "removeContent.js"}, function() {
if (chrome.runtime.lastError) {
console.error(chrome.runtime.lastError.message);
}
});
});