[matrix] update elementhttp.conf for Task#12025

matrix_extDB/matrix_noDB/conf/elementhttp.conf

@@ -0,0 +1,28 @@
+server {
+    listen  127.0.0.1:8080;
+    listen  [::1]:8080;
+    server_name  localhost;
+
+    root   /usr/share/nginx/html;
+    index  index.html;
+
+    client_max_body_size 512M;
+    proxy_buffering off;
+
+    # Set no-cache for the index.html only so that browsers always check for a new copy of Element Web.
+    location = /index.html {
+        add_header Cache-Control "no-cache";
+    }
+    location = /version {
+        add_header Cache-Control "no-cache";
+    }
+    # covers config.json and config.hostname.json requests as it is prefix.
+    location /config {
+        add_header Cache-Control "no-cache";
+    }
+
+
+    # redirect server error pages to the static page /50x.html
+    #
+    error_page   500 502 503 504  /50x.html;
+}