diff --git a/.gitignore b/.gitignore
index a1b467100..69f442484 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ dist/classTest.html
 dist/sequenceTest.html
 
 .vscode/
+cypress/platform/current.html
\ No newline at end of file
diff --git a/cypress/integration/rendering/flowchart.spec.js b/cypress/integration/rendering/flowchart.spec.js
index 4ea4cbcee..2c20090a4 100644
--- a/cypress/integration/rendering/flowchart.spec.js
+++ b/cypress/integration/rendering/flowchart.spec.js
@@ -512,7 +512,7 @@ describe('Flowchart', () => {
     );
   });
 
-  it('24: Keep node label text (if already defined) when a style is applied', () => {
+  it('24.1: Keep node label text (if already defined) when a style is applied', () => {
     imgSnapshotTest(
       `graph LR
       A(( )) -->|step 1| B(( ))
@@ -524,4 +524,55 @@ describe('Flowchart', () => {
       { flowchart: { htmlLabels: false } }
     );
   });
+it('24.2: Handle link click events (link, anchor, mailto, other protocol, script)', () => {
+    imgSnapshotTest(
+      `graph TB
+      TITLE["Link Click Events<br>(click the nodes below)"]
+      A[link test]
+      B[anchor test]
+      C[mailto test]
+      D[other protocol test]
+      E[script test]
+      TITLE --> A & B & C & D & E
+      click A "https://mermaid-js.github.io/mermaid/#/" "link test"
+      click B "#link-clicked" "anchor test"
+      click C "mailto:user@user.user" "mailto test"
+      click D "notes://do-your-thing/id" "other protocol test"
+      click E "javascript:alert('test')" "script test"
+      `,
+      { securityLevel: 'loose' }
+      );
+  });
+
+  it('25: Set node text color according to style when html labels are enabled', () => {
+    imgSnapshotTest(
+      `graph LR
+      A[red<br>text] --> B(blue<br>text)
+      C[/red<br/>text/] --> D{blue<br/>text}
+      style A color:red;
+      style B color:blue;
+      style C stroke:#ff0000,fill:#ffcccc,color:#ff0000
+      style D stroke:#0000ff,fill:#ccccff,color:#0000ff
+      click B "index.html#link-clicked" "link test"
+      click D testClick "click test"
+      `,
+      { flowchart: { htmlLabels: true } }
+    );
+  });
+
+  it('26: Set node text color according to style when html labels are disabled', () => {
+    imgSnapshotTest(
+      `graph LR
+      A[red<br>text] --> B(blue<br>text)
+      C[/red<br/>text/] --> D{blue<br/>text}
+      style A color:red;
+      style B color:blue;
+      style C stroke:#ff0000,fill:#ffcccc,color:#ff0000
+      style D stroke:#0000ff,fill:#ccccff,color:#0000ff
+      click B "index.html#link-clicked" "link test"
+      click D testClick "click test"
+      `,
+      { flowchart: { htmlLabels: false } }
+    );
+  });
 });
diff --git a/cypress/integration/rendering/stateDiagram.spec.js b/cypress/integration/rendering/stateDiagram.spec.js
index 3e0bf1e1c..db257f76c 100644
--- a/cypress/integration/rendering/stateDiagram.spec.js
+++ b/cypress/integration/rendering/stateDiagram.spec.js
@@ -319,7 +319,7 @@ describe('State diagram', () => {
       }
     );
   });
-  it('Simplest compone state', () => {
+  it('Simplest composit state', () => {
     imgSnapshotTest(
       `
       stateDiagram
@@ -332,5 +332,17 @@ describe('State diagram', () => {
       }
     );
   });
+  it('should handle multiple arrows from one node to another', () => {
+    imgSnapshotTest(
+      `
+      stateDiagram
+        a --> b: Start
+        a --> b: Stop
+    `,
+      {
+        logLevel: 0,
+      }
+    );
+  });
 
 });
diff --git a/cypress/platform/current.html b/cypress/platform/current.html
index d2e48875c..a5c6d2bec 100644
--- a/cypress/platform/current.html
+++ b/cypress/platform/current.html
@@ -5,33 +5,28 @@
       rel="stylesheet"
     />
     <style>
-      body {background: black}
+      body {background: white}
       h1 { color: white;}
       .arrowheadPath {fill: red;}
 
       .edgePath .path {stroke: red;}
-
-
     </style>
   </head>
   <body>
     <h1>info below</h1>
     <div style="display: flex;width: 100%; height: 100%">
       <div class="mermaid" style="width: 100%; height: 100%">
-        graph TB
-          A --> B
-          A ==> C
-          A .-> D
-          A === E
-          A -.- F
-          D -- Hello --> a
-          D-- text including R TD space --xb
+        stateDiagram
+
+        NotFound --> NotFound: Status
+              NotFound --> NotFound: Stop
+
       </div>
 </div>
   <script src="./mermaid.js"></script>
     <script>
       mermaid.initialize({
-        theme: 'dark',
+        // theme: 'dark',
         // arrowMarkerAbsolute: true,
         // themeCSS: '.edgePath .path {stroke: red;} .arrowheadPath {fill: red;}',
         logLevel: 0,
diff --git a/cypress/platform/huge.html b/cypress/platform/huge.html
new file mode 100644
index 000000000..687c3df23
--- /dev/null
+++ b/cypress/platform/huge.html
@@ -0,0 +1,39 @@
+<html>
+  <head>
+    <link
+      href="https://fonts.googleapis.com/css?family=Montserrat&display=swap"
+      rel="stylesheet"
+    />
+    <style>
+      body {background: white}
+      h1 { color: white;}
+      .arrowheadPath {fill: red;}
+
+      .edgePath .path {stroke: red;}
+
+
+    </style>
+  </head>
+  <body>
+    <h1>info below</h1>
+    <div style="display: flex;width: 100%; height: 100%">
+      <div class="mermaid" style="width: 100%; height: 100%">
+        graph LR
+        A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;A-->B;B-->A;A-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+      </div>
+</div>
+  <script src="./mermaid.js"></script>
+    <script>
+      mermaid.initialize({
+        theme: 'dark',
+        // arrowMarkerAbsolute: true,
+        // themeCSS: '.edgePath .path {stroke: red;} .arrowheadPath {fill: red;}',
+        logLevel: 0,
+        flowchart: { curve: 'linear', "htmlLabels": false },
+        // gantt: { axisFormat: '%m/%d/%Y' },
+        sequence: { actorMargin: 50 },
+        // sequenceDiagram: { actorMargin: 300 } // deprecated
+      });
+    </script>
+  </body>
+</html>
diff --git a/dist/index.html b/dist/index.html
index 2505d8010..47293b4b6 100644
--- a/dist/index.html
+++ b/dist/index.html
@@ -353,6 +353,33 @@ graph TB
     linkStyle 1 stroke:greenyellow,stroke-width:2px
     style C fill:greenyellow,stroke:green,stroke-width:4px
   </div>
+  <div class="mermaid">
+    graph TB
+    TITLE["Link Click Events<br>(click the nodes below)"]
+    A[link test]
+    B[anchor test]
+    C[mailto test]
+    D[other protocol test]
+    E[script test]
+    TITLE --> A & B & C & D & E
+    click A "https://mermaid-js.github.io/mermaid/#/" "link test"
+    click B "#link-clicked" "anchor test"
+    click C "mailto:user@user.user" "mailto test"
+    click D "notes://do-your-thing/id" "other protocol test"
+    click E "javascript:alert('test')" "script test"
+  </div>
+  <hr/>
+  <div class="mermaid">
+    graph LR
+    A[red<br>text] --> B(blue<br>text)
+    C[/red<br/>text/] --> D{blue<br/>text}
+    style A color:red;
+    style B color:blue;
+    style C stroke:#ff0000,fill:#ffcccc,color:#ff0000
+    style D stroke:#0000ff,fill:#ccccff,color:#0000ff
+    click B "index.html#link-clicked" "link test"
+    click D testClick "click test"
+  </div>
 
   <hr/>
 
@@ -587,12 +614,15 @@ class Class10 {
     end note
   </div>
 
+  <h1 id="link-clicked">Anchor for "link-clicked" test</h1>
+
   <script src="./mermaid.js"></script>
   <script>
     mermaid.initialize({
       theme: 'forest',
       // themeCSS: '.node rect { fill: red; }',
       logLevel: 3,
+      securityLevel: 'loose',
       flowchart: { curve: 'basis' },
       gantt: { axisFormat: '%m/%d/%Y' },
       sequence: { actorMargin: 50 },
diff --git a/docs/flowchart.md b/docs/flowchart.md
index ff0e6cbdc..b6bdabc2f 100644
--- a/docs/flowchart.md
+++ b/docs/flowchart.md
@@ -509,13 +509,13 @@ It is possible to apply specific styles such as a thicker border or a different
 graph LR
     id1(Start)-->id2(Stop)
     style id1 fill:#f9f,stroke:#333,stroke-width:4px
-    style id2 fill:#ccf,stroke:#f66,stroke-width:2px,stroke-dasharray: 5, 5
+    style id2 fill:#bbf,stroke:#f66,stroke-width:2px,color:#fff,stroke-dasharray: 5, 5
 ```
 ```mermaid
 graph LR
     id1(Start)-->id2(Stop)
     style id1 fill:#f9f,stroke:#333,stroke-width:4px
-    style id2 fill:#ccf,stroke:#f66,stroke-width:2px,stroke-dasharray: 5, 5
+    style id2 fill:#bbf,stroke:#f66,stroke-width:2px,color:#fff,stroke-dasharray: 5, 5
 ```
 
 
diff --git a/docs/mermaidAPI.md b/docs/mermaidAPI.md
index 7fa530406..7b7b68e06 100644
--- a/docs/mermaidAPI.md
+++ b/docs/mermaidAPI.md
@@ -275,11 +275,12 @@ mermaidAPI.initialize({
 ### Parameters
 
 -   `id`  the id of the element to be rendered
--   `txt`  the graph definition
+-   `_txt`  
 -   `cb`  callback which is called after rendering is finished with the svg code as inparam.
 -   `container`  selector to element in which a div with the graph temporarily will be inserted. In one is
     provided a hidden div will be inserted in the body of the page instead. The element will be removed when rendering is
     completed.
+-   `txt`  the graph definition
 
 ## 
 
diff --git a/src/diagrams/class/classRenderer.js b/src/diagrams/class/classRenderer.js
index f4b58cb9d..97543d1de 100644
--- a/src/diagrams/class/classRenderer.js
+++ b/src/diagrams/class/classRenderer.js
@@ -502,8 +502,8 @@ export const draw = function(text, id) {
     }
   });
 
-  diagram.attr('height', '100%');
-  diagram.attr('width', `${g.graph().width * 1.5 + 20}`);
+  diagram.attr('height', g.graph().height + 40);
+  diagram.attr('width', g.graph().width * 1.5 + 20);
   diagram.attr('viewBox', '-10 -10 ' + (g.graph().width + 20) + ' ' + (g.graph().height + 20));
 };
 
diff --git a/src/diagrams/flowchart/flowRenderer.js b/src/diagrams/flowchart/flowRenderer.js
index 931608b45..decb382f8 100644
--- a/src/diagrams/flowchart/flowRenderer.js
+++ b/src/diagrams/flowchart/flowRenderer.js
@@ -87,6 +87,7 @@ export const addVertices = function(vert, g, svgId) {
       vertexNode.parentNode.removeChild(vertexNode);
     } else {
       const svgLabel = document.createElementNS('http://www.w3.org/2000/svg', 'text');
+      svgLabel.setAttribute('style', labelStyle.replace('color:', 'fill:'));
 
       const rows = vertexText.split(/<br\s*\/?>/gi);
 
diff --git a/src/diagrams/flowchart/parser/flow-huge.spec.js b/src/diagrams/flowchart/parser/flow-huge.spec.js
new file mode 100644
index 000000000..901a615a2
--- /dev/null
+++ b/src/diagrams/flowchart/parser/flow-huge.spec.js
@@ -0,0 +1,29 @@
+import flowDb from '../flowDb';
+import flow from './flow';
+import { setConfig } from '../../../config';
+
+setConfig({
+  securityLevel: 'strict'
+});
+
+describe('[Text] when parsing', () => {
+  beforeEach(function() {
+    flow.parser.yy = flowDb;
+    flow.parser.yy.clear();
+  });
+
+  describe('it should handle huge files', function() {
+    it('it should handlehuge diagrams', function() {
+      const res = flow.parser.parse('graph 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>B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;A-->B;B-->A;');
+
+      const vert = flow.parser.yy.getVertices();
+      const edges = flow.parser.yy.getEdges();
+
+      expect(edges[0].type).toBe('arrow');
+      expect(edges.length).toBe(47917);
+      console.log(vert);
+      expect(Object.keys(vert).length).toBe(2);
+    });
+
+  });
+});
diff --git a/src/diagrams/state/parser/stateDiagram.jison b/src/diagrams/state/parser/stateDiagram.jison
index a5ad58cf9..49d1200c8 100644
--- a/src/diagrams/state/parser/stateDiagram.jison
+++ b/src/diagrams/state/parser/stateDiagram.jison
@@ -48,7 +48,7 @@
 <STATE>.*"[[fork]]"                   {this.popState();yytext=yytext.slice(0,-8).trim();/*console.warn('Fork Fork: ',yytext);*/return 'FORK';}
 <STATE>.*"[[join]]"                   {this.popState();yytext=yytext.slice(0,-8).trim();/*console.warn('Fork Join: ',yytext);*/return 'JOIN';}
 <STATE>["]                   this.begin("STATE_STRING");
-<STATE>"as"\s*         {this.popState();this.pushState('STATE_ID');return "AS";}
+<STATE>\s*"as"\s+         {this.popState();this.pushState('STATE_ID');return "AS";}
 <STATE_ID>[^\n\{]*         {this.popState();/* console.log('STATE_ID', yytext);*/return "ID";}
 <STATE_STRING>["]              this.popState();
 <STATE_STRING>[^"]*         { /*console.log('Long description:', yytext);*/return "STATE_DESCR";}
diff --git a/src/diagrams/state/stateDiagram.spec.js b/src/diagrams/state/stateDiagram.spec.js
index d609978ad..a261098f4 100644
--- a/src/diagrams/state/stateDiagram.spec.js
+++ b/src/diagrams/state/stateDiagram.spec.js
@@ -53,6 +53,39 @@ describe('state diagram, ', function() {
 
       parser.parse(str);
     });
+
+    it('handle "as" in state names', function() {
+      const str = `stateDiagram
+      assemble
+      state assemble
+      `;
+
+      parser.parse(str);
+    });
+    it('handle "as" in state names 1', function() {
+      const str = `stateDiagram
+      assemble
+      state assemble
+      `;
+
+      parser.parse(str);
+    });
+    it('handle "as" in state names 2', function() {
+      const str = `stateDiagram
+      assembleas
+      state assembleas
+      `;
+
+      parser.parse(str);
+    });
+    it('handle "as" in state names 3', function() {
+      const str = `stateDiagram
+      state "as" as as
+      `;
+
+      parser.parse(str);
+    });
+
     it('scale', function() {
       const str = `stateDiagram\n
         scale 350 width
diff --git a/src/diagrams/state/stateRenderer.js b/src/diagrams/state/stateRenderer.js
index cec09a898..396bb976d 100644
--- a/src/diagrams/state/stateRenderer.js
+++ b/src/diagrams/state/stateRenderer.js
@@ -53,7 +53,7 @@ export const draw = function(text, id) {
 
   // Layout graph, Create a new directed graph
   const graph = new graphlib.Graph({
-    multigraph: false,
+    multigraph: true,
     compound: true,
     // acyclicer: 'greedy',
     rankdir: 'RL'
@@ -110,7 +110,8 @@ const getRows = s => {
 const renderDoc = (doc, diagram, parentId, altBkg) => {
   // // Layout graph, Create a new directed graph
   const graph = new graphlib.Graph({
-    compound: true
+    compound: true,
+    multigraph: true
   });
 
   let i;
@@ -126,28 +127,29 @@ const renderDoc = (doc, diagram, parentId, altBkg) => {
   if (parentId)
     graph.setGraph({
       rankdir: 'LR',
-      // multigraph: false,
+      multigraph: true,
       compound: true,
       // acyclicer: 'greedy',
       ranker: 'tight-tree',
       ranksep: edgeFreeDoc ? 1 : conf.edgeLengthFactor,
-      nodeSep: edgeFreeDoc ? 1 : 50
-      // isMultiGraph: false
+      nodeSep: edgeFreeDoc ? 1 : 50,
+      isMultiGraph: true
       // ranksep: 5,
       // nodesep: 1
     });
   else {
     graph.setGraph({
       rankdir: 'TB',
+      multigraph: true,
       compound: true,
       // isCompound: true,
       // acyclicer: 'greedy',
       // ranker: 'longest-path'
       ranksep: edgeFreeDoc ? 1 : conf.edgeLengthFactor,
       nodeSep: edgeFreeDoc ? 1 : 50,
-      ranker: 'tight-tree'
+      ranker: 'tight-tree',
       // ranker: 'network-simplex'
-      // isMultiGraph: false
+      isMultiGraph: true
     });
   }
 
@@ -226,14 +228,22 @@ const renderDoc = (doc, diagram, parentId, altBkg) => {
     }
   }
 
-  logger.info('Count=', graph.nodeCount());
+  logger.debug('Count=', graph.nodeCount(), graph);
+  let cnt = 0;
   relations.forEach(function(relation) {
-    graph.setEdge(relation.id1, relation.id2, {
-      relation: relation,
-      width: getLabelWidth(relation.title),
-      height: conf.labelHeight * getRows(relation.title).length,
-      labelpos: 'c'
-    });
+    cnt++;
+    logger.debug('Setting edge', relation);
+    graph.setEdge(
+      relation.id1,
+      relation.id2,
+      {
+        relation: relation,
+        width: getLabelWidth(relation.title),
+        height: conf.labelHeight * getRows(relation.title).length,
+        labelpos: 'c'
+      },
+      'id' + cnt
+    );
   });
 
   dagre.layout(graph);
@@ -299,7 +309,7 @@ const renderDoc = (doc, diagram, parentId, altBkg) => {
   stateInfo.width = stateBox.width + 2 * conf.padding;
   stateInfo.height = stateBox.height + 2 * conf.padding;
 
-  logger.info('Doc rendered', stateInfo, graph);
+  logger.debug('Doc rendered', stateInfo, graph);
   return stateInfo;
 };
 
diff --git a/src/mermaidAPI.js b/src/mermaidAPI.js
index 08c090261..273c93b5d 100644
--- a/src/mermaidAPI.js
+++ b/src/mermaidAPI.js
@@ -95,6 +95,8 @@ const config = {
    */
   theme: 'default',
   themeCSS: undefined,
+  /* **maxTextSize** - The maximum allowed size of the users text diamgram */
+  maxTextSize: 50000,
 
   /**
    * **fontFamily** The font to be used for the rendered diagrams. Default value is \"trebuchet ms\", verdana, arial;
@@ -460,7 +462,13 @@ export const decodeEntities = function(text) {
  * provided a hidden div will be inserted in the body of the page instead. The element will be removed when rendering is
  * completed.
  */
-const render = function(id, txt, cb, container) {
+const render = function(id, _txt, cb, container) {
+  // Check the maximum allowed text size
+  let txt = _txt;
+  if (_txt.length > config.maxTextSize) {
+    txt = 'graph TB;a[Maximum text size in diagram exceeded];style a fill:#faa';
+  }
+
   if (typeof container !== 'undefined') {
     container.innerHTML = '';
 
diff --git a/src/utils.js b/src/utils.js
index de7718773..38010c41f 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -99,10 +99,6 @@ export const formatUrl = (linkStr, config) => {
   if (url) {
     if (config.securityLevel !== 'loose') {
       return sanitizeUrl(url);
-    } else {
-      if (!/^(https?:)?\/\//i.test(url)) {
-        url = 'http://' + url;
-      }
     }
 
     return url;
diff --git a/src/utils.spec.js b/src/utils.spec.js
index 86de39513..34adf4424 100644
--- a/src/utils.spec.js
+++ b/src/utils.spec.js
@@ -37,3 +37,61 @@ describe('when finding substring in array ', function() {
     expect(result).toEqual(-1);
   });
 });
+
+describe('when formatting urls', function() {
+  it('should handle links', function() {
+    const url = 'https://mermaid-js.github.io/mermaid/#/';
+
+    let config = { securityLevel: 'loose' };
+    let result = utils.formatUrl(url, config);
+    expect(result).toEqual(url);
+
+    config.securityLevel = 'strict';
+    result = utils.formatUrl(url, config);
+    expect(result).toEqual(url);
+  });
+  it('should handle anchors', function() {
+    const url = '#interaction';
+
+    let config = { securityLevel: 'loose' };
+    let result = utils.formatUrl(url, config);
+    expect(result).toEqual(url);
+
+    config.securityLevel = 'strict';
+    result = utils.formatUrl(url, config);
+    expect(result).toEqual('about:blank');
+  });
+  it('should handle mailto', function() {
+    const url = 'mailto:user@user.user';
+
+    let config = { securityLevel: 'loose' };
+    let result = utils.formatUrl(url, config);
+    expect(result).toEqual(url);
+
+    config.securityLevel = 'strict';
+    result = utils.formatUrl(url, config);
+    expect(result).toEqual(url);
+  });
+  it('should handle other protocols', function() {
+    const url = 'notes://do-your-thing/id';
+
+    let config = { securityLevel: 'loose' };
+    let result = utils.formatUrl(url, config);
+    expect(result).toEqual(url);
+
+    config.securityLevel = 'strict';
+    result = utils.formatUrl(url, config);
+    expect(result).toEqual(url);
+  });
+  it('should handle scripts', function() {
+    const url = 'javascript:alert("test")';
+
+    let config = { securityLevel: 'loose' };
+    let result = utils.formatUrl(url, config);
+    expect(result).toEqual(url);
+
+    config.securityLevel = 'strict';
+    result = utils.formatUrl(url, config);
+    expect(result).toEqual('about:blank');
+  });
+});
diff --git a/todo.md b/todo.md
index 615856d5a..4bb8a1615 100644
--- a/todo.md
+++ b/todo.md
@@ -1,4 +1,3 @@
-- Get familar with jison
 - git graph requires a blank line at the end. why?
 - Create a desktop client
 - Do the rendering in an iframe to avoid global CSS to affect rendering.
