index.js

chrome.tabs.onUpdated.addListener(async (tabId, changeInfo, tab) => {
    if (changeInfo.status === "complete") {
        const checkAndExecute = (url) => {
            if (url.includes("github.com") && url.includes("issues")) {
                console.log('Project page detected');
                chrome.scripting.executeScript({
                    target: { tabId: tabId },
                    function: clickButton
                });
            }
        };
        checkAndExecute(tab.url);
    }
});

function clickButton() {
    activateMoreButton();
    
    function activateMoreButton() {
        console.log('Running script');
        const buttons = document.querySelectorAll('.Link--primary.btn-link');
        for (const button of buttons) {
            if (button.textContent.trim() === '+1 more') {
                button.click();
                console.log('Button clicked:', button);

                const events = ['click', 'mousedown', 'mouseup', 'focus'];
                for (const eventType of events) {
                    const event = new MouseEvent(eventType, {
                        bubbles: true,
                        cancelable: true,
                        view: window
                    });
                    button.dispatchEvent(event);
                }
            }
        }
    }
    window.navigation.addEventListener("navigate", (event) => {
        activateMoreButton();
    });

}