From f7a6241ac02dc557d5125069fa32a2845bbd8432 Mon Sep 17 00:00:00 2001
From: Knut Sveidqvist <knut@sveido.com>
Date: Sat, 18 Jul 2020 09:57:55 +0200
Subject: [PATCH] #1542 Fix for markers in class diagrams

---
 src/diagrams/class/styles.js | 2 +-
 src/mermaidAPI.js            | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/diagrams/class/styles.js b/src/diagrams/class/styles.js
index cf5a929c5..5a272e7a9 100644
--- a/src/diagrams/class/styles.js
+++ b/src/diagrams/class/styles.js
@@ -47,7 +47,7 @@ g.classGroup line {
   stroke-dasharray: 3;
 }
 
-#compositionStart, #compositionEnd, #dependencyStart, #dependencyEnd, #extensionStart. #extensionEnd {
+#compositionStart, #compositionEnd, #dependencyStart, #dependencyEnd, #extensionStart, #extensionEnd {
   fill: ${options.nodeBorder};
   stroke: ${options.nodeBorder};
   stroke-width: 1;
diff --git a/src/mermaidAPI.js b/src/mermaidAPI.js
index 7ff1511d4..2e74f89e5 100644
--- a/src/mermaidAPI.js
+++ b/src/mermaidAPI.js
@@ -536,11 +536,11 @@ function initialize(options) {
   // console.log(`mermaidAPI.initialize: v${pkg.version}`);
   // Set default options
 
-  if (options.theme && themes[options.theme]) {
+  if (options && options.theme && themes[options.theme]) {
     // Todo merge with user options
     options.themeVariables = themes[options.theme];
   } else {
-    options.themeVariables = themes.default;
+    if (options) options.themeVariables = themes.default;
   }
 
   const config = typeof options === 'object' ? setSiteConfig(options) : getSiteConfig();