From 4228f585fbb865895b3ebf44debadb1cf8970df5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Patrick=20Ha=C3=9Fel?= <git@patrick-hassel.de>
Date: Tue, 3 Jan 2023 14:32:23 +0100
Subject: [PATCH] server cache FIX

---
 src/server.cpp | 33 +++++++++++++++++++--------------
 1 file changed, 19 insertions(+), 14 deletions(-)

diff --git a/src/server.cpp b/src/server.cpp
index e7f3200..2fa97ba 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -45,19 +45,24 @@ void server_loop() {
 void web_index() {
   server.setContentLength(CONTENT_LENGTH_UNKNOWN);
   server.send(200, "text/html", "");
-  server.sendContent("<a href='/mode?mode=0'>NONE</a><br>");
-  server.sendContent("<a href='/mode?mode=1'>BORDER</a><br>");
-  server.sendContent("<a href='/mode?mode=2'>CLOCK</a><br>");
-  server.sendContent("<a href='/mode?mode=3'>GAME_OF_LIFE_BLACK_WHITE</a><br>");
-  server.sendContent("<a href='/mode?mode=4'>GAME_OF_LIFE_GRAYSCALE</a><br>");
-  server.sendContent("<a href='/mode?mode=5'>GAME_OF_LIFE_COLOR_FADE</a><br>");
-  server.sendContent("<a href='/mode?mode=6'>GAME_OF_LIFE_RANDOM_COLOR</a><br>");
-  server.sendContent("<a href='/mode?mode=7'>PONG</a><br>");
-  server.sendContent("<a href='/mode?mode=8'>SPACE_INVADERS</a><br>");
-  server.sendContent("<a href='/mode?mode=9'>NEW_YEAR</a><br>");
-  server.sendContent("Helligkeit: <a href='/brighter'>+</a> / <a href='/darker'>-</a><br>");
-  server.sendContent("Geschwindigkeit: <a href='/faster'>+</a> / <a href='/slower'>-</a><br>");
-  server.sendContent("FPS: <a href='/fps/on'>EIN</a> / <a href='/fps/off'>AUS</a><br>");
+  server.sendContent(R"(<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />)");
+  server.sendContent(R"(<meta http-equiv="Pragma" content="no-cache" />)");
+  server.sendContent(R"(<meta http-equiv="Expires" content="0" />)");
+
+  server.sendContent(R"(<a href="/mode?mode=0">NONE</a><br>)");
+  server.sendContent(R"(<a href="/mode?mode=1">BORDER</a><br>)");
+  server.sendContent(R"(<a href="/mode?mode=2">CLOCK</a><br>)");
+  server.sendContent(R"(<a href="/mode?mode=3">GAME_OF_LIFE_BLACK_WHITE</a><br>)");
+  server.sendContent(R"(<a href="/mode?mode=4">GAME_OF_LIFE_GRAYSCALE</a><br>)");
+  server.sendContent(R"(<a href="/mode?mode=5">GAME_OF_LIFE_COLOR_FADE</a><br>)");
+  server.sendContent(R"(<a href="/mode?mode=6">GAME_OF_LIFE_RANDOM_COLOR</a><br>)");
+  server.sendContent(R"(<a href="/mode?mode=7">PONG</a><br>)");
+  server.sendContent(R"(<a href="/mode?mode=8">SPACE_INVADERS</a><br>)");
+  server.sendContent(R"(<a href="/mode?mode=9">NEW_YEAR</a><br>)");
+
+  server.sendContent(R"(Helligkeit: <a href="/brighter">+</a> / <a href="/darker">-</a><br>)");
+  server.sendContent(R"(Geschwindigkeit: <a href="/faster">+</a> / <a href="/slower">-</a><br>)");
+  server.sendContent(R"(FPS: <a href="/fps/on">EIN</a> / <a href="/fps/off">AUS</a><br>)");
   server.client().flush();
 }
 
@@ -107,5 +112,5 @@ void web_fps_off() {
 
 void redirect() {
   server.sendHeader("location", "/");
-  server.send(301, "text/plain", "ok");
+  server.send(302, "text/plain", "ok");
 }