hanspinckaers/global.html

## global.html
<html>
<head>
<script type="text/javascript" charset="utf-8">
// I couldn't find another way to execute a before content script only in a certain Safari tab:
// using dispatching to before script only works in the event 'navigate', which is (imo) too slow for a before contentscript.

// placeholder for the generated content script filename
var currentScriptURL = "";

// set this variable to the tab in which you want to run the script
// e.g. as soon as someone clicks the toolbar button, save the current active tab here.
var currentExternalTab;

safari.application.addEventListener("beforeNavigate", function(event) {
	if (currentScriptURL.length > 0) {
		safari.extension.removeContentScript(currentScriptURL);
		currentScriptURL = "";
	}

	if (event.target == currentExternalTab) {
		var whitelist;

		// had more success by generating the following whitelist:
		var url = new URL(event.url);
		if (url) {
			whitelist = ["http://*", "https://*", url.protocol + "//" + url.host + "*"];
		} else {
			whitelist = [event.url]
		}
		currentScriptURL = safari.extension.addContentScriptFromURL(safari.extension.baseURI + "inject.js", whitelist, [], false);
	}
});
</script>
</body>
</html>
	<html>
	<head>
	<script type="text/javascript" charset="utf-8">
	// I couldn't find another way to execute a before content script only in a certain Safari tab:
	// using dispatching to before script only works in the event 'navigate', which is (imo) too slow for a before contentscript.

	// placeholder for the generated content script filename
	var currentScriptURL = "";

	// set this variable to the tab in which you want to run the script
	// e.g. as soon as someone clicks the toolbar button, save the current active tab here.
	var currentExternalTab;

	safari.application.addEventListener("beforeNavigate", function(event) {
	if (currentScriptURL.length > 0) {
	safari.extension.removeContentScript(currentScriptURL);
	currentScriptURL = "";
	}

	if (event.target == currentExternalTab) {
	var whitelist;

	// had more success by generating the following whitelist:
	var url = new URL(event.url);
	if (url) {
	whitelist = ["http://", "https://", url.protocol + "//" + url.host + "*"];
	} else {
	whitelist = [event.url]
	}
	currentScriptURL = safari.extension.addContentScriptFromURL(safari.extension.baseURI + "inject.js", whitelist, [], false);
	}
	});
	</script>
	</body>
	</html>