Accept VNC password alias for live browser

README.md

@@ -14,7 +14,7 @@ An interactive remote Chromium browser streamed through noVNC.
 
 ## Use
 
-1. In **Settings → Variables and secrets**, create `BROWSER_PASSWORD` with at least 8 characters.
+1. In **Settings → Variables and secrets**, create `BROWSER_PASSWORD` with at least 8 characters. `VNC_PASSWORD` is also accepted as an alias.
 2. Open the Space and click **Open live browser**.
 3. Enter the first 8 characters of the password when noVNC asks.
 4. Use the visible Chromium address bar to search, type, click, scroll, and navigate.

start-browser.sh

@@ -1,9 +1,14 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-: "${BROWSER_PASSWORD:?Set BROWSER_PASSWORD in Space Settings → Variables and secrets}"
-if [ "${#BROWSER_PASSWORD}" -lt 8 ]; then
-  echo "BROWSER_PASSWORD must contain at least 8 characters. x11vnc uses the first 8 characters." >&2
+# Accept the recommended name plus the common VNC_PASSWORD alias.
+PASSWORD="${BROWSER_PASSWORD:-${VNC_PASSWORD:-}}"
+if [ -z "$PASSWORD" ]; then
+  echo "Set BROWSER_PASSWORD (or VNC_PASSWORD) in Space Settings → Variables and secrets." >&2
+  exit 1
+fi
+if [ "${#PASSWORD}" -lt 8 ]; then
+  echo "The browser password must contain at least 8 characters. x11vnc uses the first 8 characters." >&2
   exit 1
 fi
 
@@ -12,7 +17,7 @@ export HOME=/tmp/browser-home
 mkdir -p "$HOME" /tmp/browser-profile
 
 # VNC authentication is required because this Space is publicly reachable.
-x11vnc -storepasswd "${BROWSER_PASSWORD:0:8}" /tmp/vnc.pass >/dev/null
+x11vnc -storepasswd "${PASSWORD:0:8}" /tmp/vnc.pass >/dev/null
 
 Xvfb :99 -screen 0 1440x900x24 -ac +extension GLX +render -noreset >/tmp/xvfb.log 2>&1 &
 fluxbox -display :99 >/tmp/fluxbox.log 2>&1 &