Automatically remove www from URL on Quick Start page so web based fl…

…asher works properly.

website-src/quick_start.html

@@ -4,6 +4,15 @@
 	<title>Quickstart - kv4p HT</title>
 	<link rel="icon" type="image/x-icon" href="img/favicon-16x16.png">
 
+	<script>
+		// Check if the current hostname starts with "www.", if so redirect to remove it (it breaks the web-based firmware flasher library).
+		if (window.location.hostname.startsWith("www.")) {
+		  const newHostname = window.location.hostname.slice(4);
+		  const newURL = `${window.location.protocol}//${newHostname}${window.location.pathname}${window.location.search}`;
+		  window.location.replace(newURL); // Use replace to avoid adding the redirect to the history
+		}
+	</script>
+
     <!-- kv4p HT is an open source project, I'm not selling anything or showing ads. I use Google Analytics only to understand how people are using the website. - KV4P -->
 	<!-- Google tag (gtag.js) -->
 	<script async src="https://www.googletagmanager.com/gtag/js?id=G-485V3MK16Y"></script>