502 not so ugly error page for nginx

configs/nginx.example

@@ -7,6 +7,7 @@ server {
 	server_name domain.com www.domain.com;
 	server_tokens off;
 	error_page 404 = /path/to/jschan/static/html/404.html;
+	error_page 502 = /path/to/jschan/static/html/502.html;
 
 	add_header Cache-Control "public";
 	add_header Content-Security-Policy "default-src 'self'; img-src 'self'; object-src 'none'; script-src 'self'; style-src 'self' 'unsafe-inline'";

configs/nginx_no_https.example

@@ -7,6 +7,7 @@ server {
 	server_name domain.com www.domain.com;
 	server_tokens off;
 	error_page 404 = /path/to/jschan/static/html/404.html;
+	error_page 502 = /path/to/jschan/static/html/502.html;
 
 	add_header Cache-Control "public";
 	add_header Content-Security-Policy "default-src 'self'; img-src 'self'; object-src 'none'; script-src 'self'; style-src 'self' 'unsafe-inline'";

gulpfile.js

@@ -137,7 +137,7 @@ function deletehtml() {
 }
 
 function custompages() {
-	return gulp.src([`${paths.pug.src}/custompages/*.pug`, `${paths.pug.src}/pages/404.pug`])
+	return gulp.src([`${paths.pug.src}/custompages/*.pug`, `${paths.pug.src}/pages/404.pug`, `${paths.pug.src}/pages/502.pug`])
 		.pipe(gulppug({
 			locals: {
 				defaultTheme: configs.boardDefaults.theme,

views/pages/502.pug

@@ -0,0 +1,9 @@
+extends ../layout.pug
+
+block head
+	script(src='/js/all.js')
+
+block content
+	h1 502 Bad gateway
+	p The site is either down for maintenance, or geting DDoS'd
+	p Don't worry, it will be back soon :^)