jstoggle/background.html at master · yoniholmes/jstoggle · GitHub

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<html>
<head>
<script>

chrome.browserAction.onClicked.addListener(function () {

	chrome.tabs.getSelected(undefined, function(tab) {
		var url = tab.url;

		chrome.experimental.contentSettings.javascript.get(
			{
				primaryUrl: url
			},
			function (details) {

				var isJSon = details.setting === "allow",
					newJSsetting = isJSon ? "block" : "allow",
					pattern = /^file:/.test(url) ? url : url.replace(/\/[^\/]*?$/, '/*');
				pattern = '<all_urls>'
				console.log(details.setting, pattern, newJSsetting)

				chrome.experimental.contentSettings.javascript.set({
					'primaryPattern': pattern,
					'setting': newJSsetting,
					'scope': 'regular'
				});
				chrome.browserAction.setIcon({
					'path': 'js-' + (isJSon ? 'off' : 'on') + '.png'
				})
				console.log('JS is now: ' + newJSsetting + 'ed')
			}
		);
	});
});

</script>
</head>
</html>