tear-down-this-wall.js

var active = false;

function changeRefer(details) {
    if (!active) return;

    for (var i = 0; i < details.requestHeaders.length; ++i) {
        if (details.requestHeaders[i].name === 'Referer') {
            details.requestHeaders[i].value = 'https://www.google.com/';
            break;
        }
    }

    active = false;
    return {
        requestHeaders: details.requestHeaders
    };
}

chrome.webRequest.onBeforeSendHeaders.addListener(changeRefer, {
    urls: ["<all_urls>"],
    types: ["main_frame"],
}, ["requestHeaders", "blocking"]);

chrome.browserAction.onClicked.addListener(function(tab) {
    active = true;
    chrome.tabs.executeScript({
        code: 'window.stop(); window.location.reload();'
    });
});