Correctly detect HTTPS

Author: seanmorris

demo-web/public/cgi-worker.js

@@ -419,12 +419,14 @@ export class PhpCgiBase
 			putEnv(php, name, value);
 		}
 
+		const protocol = selfUrl.protocol.substr(0, selfUrl.protocol.length - 1);
+
 		putEnv(php, 'SERVER_SOFTWARE', globalThis.navigator ? globalThis.navigator.userAgent : (globalThis.process ? 'Node ' + globalThis.process.version : 'Javascript - Unknown'));
 		putEnv(php, 'REQUEST_METHOD', method);
 		putEnv(php, 'REMOTE_ADDR', '127.0.0.1');
 		putEnv(php, 'HTTP_HOST', selfUrl.host);
-		putEnv(php, 'REQUEST_SCHEME', selfUrl.protocol);
-		putEnv(php, 'HTTPS', selfUrl.protocol === 'https' ? 'on' : 'off');
+		putEnv(php, 'REQUEST_SCHEME', protocol);
+		putEnv(php, 'HTTPS', protocol === 'https' ? 'on' : 'off');
 
 		putEnv(php, 'DOCUMENT_ROOT', docroot);
 		putEnv(php, 'REQUEST_URI', originalPath);