From 2f9e65195810e19cd69142693c8358862aaea9cd Mon Sep 17 00:00:00 2001
From: Neale Pickett <neale@woozle.org>
Date: Fri, 22 Apr 2022 19:42:30 -0600
Subject: [PATCH] Don't try to end a transmission with no start time

Fixes #38
---
 static/vail.mjs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/static/vail.mjs b/static/vail.mjs
index 4f03546..5e9cda7 100644
--- a/static/vail.mjs
+++ b/static/vail.mjs
@@ -262,6 +262,9 @@ class VailClient {
 	 * Stop the side tone buzzer, and send out how long it was active.
 	 */
 	endTx() {
+		if (!this.beginTxTime) {
+			return
+		}
 		let endTxTime = Date.now()
 		let duration = endTxTime - this.beginTxTime
 		this.buzzer.Silence(true)