diff --git a/tests/playgrounds/multi_compressed.html b/tests/playgrounds/multi_compressed.html
new file mode 100644
index 000000000..29f0ae383
--- /dev/null
+++ b/tests/playgrounds/multi_compressed.html
@@ -0,0 +1,470 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>Multi-toolbox Compressed Playground</title>
+<script src="../../blockly_compressed.js"></script>
+<script src="../../blocks_compressed.js"></script>
+<script src="../../msg/messages.js"></script>
+<script>
+'use strict';
+var options = {
+  comments: true,
+  collapse: true,
+  disable: true,
+  maxBlocks: Infinity,
+  media: '../../media/',
+  oneBasedIndex: true,
+  readOnly: false,
+  //rtl: false,
+  scrollbars: true,
+  trashcan: true,
+  //toolbox: null,
+  //horizontalLayout: false,
+  //toolboxPosition: 'start',
+  zoom: {
+    controls: true,
+    wheel: false,
+    startScale: 1.0,
+    maxScale: 4,
+    minScale: 0.25,
+    scaleSpeed: 1.1
+  }
+};
+
+function start() {
+  var match = location.search.match(/toolbox=([^&]+)/);
+  var toolbox =
+      document.getElementById('toolbox-' + (match ? match[1] : 'categories'));
+  document.forms.options.elements.toolbox.selectedIndex =
+      Number(toolbox.getElementsByTagName('category').length == 0);
+  startBlocklyInstance('VertStartLTR', false, false, 'start', toolbox);
+  startBlocklyInstance('VertStartRTL', true, false, 'start', toolbox);
+
+  startBlocklyInstance('VertEndLTR', false, false, 'end', toolbox);
+  startBlocklyInstance('VertEndRTL', true, false, 'end', toolbox);
+
+  startBlocklyInstance('HorizontalStartLTR', false, true, 'start', toolbox);
+  startBlocklyInstance('HorizontalStartRTL', true, true, 'start', toolbox);
+
+  startBlocklyInstance('HorizontalEndLTR', false, true, 'end', toolbox);
+  startBlocklyInstance('HorizontalEndRTL', true, true, 'end', toolbox);
+}
+
+function startBlocklyInstance(suffix, rtl, horizontalLayout, position,
+    toolbox) {
+  options.rtl = rtl;
+  options.toolbox = toolbox;
+  options.horizontalLayout = horizontalLayout;
+  options.toolboxPosition = position;
+  Blockly.inject('blocklyDiv' + suffix, options);
+}
+</script>
+
+<style>
+html, body {
+  height: 100%;
+}
+body {
+  background-color: #fff;
+  font-family: sans-serif;
+}
+h1 {
+  font-weight: normal;
+  font-size: 140%;
+}
+
+#octaweb {
+  width: 100%;
+}
+#octaweb th {
+  padding-top: 1em;
+  width: 50%;
+}
+#octaweb td {
+  width: 50%;
+}
+#octaweb td >div {
+  height: 480px;
+  width: 100%;
+}
+</style>
+</head>
+<body onload="start()">
+  <h1>Blockly Multi Playground</h1>
+
+  <form id="options">
+    <select name="toolbox" onchange="document.forms.options.submit()">
+      <option value="categories">Categories</option>
+      <option value="simple">Simple</option>
+    </select>
+  </form>
+
+  <table id="octaweb">
+    <tr>
+      <th>LTR, Vertical, Start</th>
+      <th>RTL, Vertical, Start</th>
+    </tr>
+    <tr>
+      <td><div id="blocklyDivVertStartLTR"></div></td>
+      <td><div id="blocklyDivVertStartRTL"></div></td>
+    </tr>
+    <tr>
+      <th>LTR, Vertical, End</th>
+      <th>RTL, Vertical, End</th>
+    </tr>
+    <tr>
+      <td><div id="blocklyDivVertEndLTR"></div></td>
+      <td><div id="blocklyDivVertEndRTL"></div></td>
+    </tr>
+    <tr>
+      <th>LTR, Horizontal, Start</th>
+      <th>RTL, Horizontal, Start</th>
+    </tr>
+    <tr>
+      <td><div id="blocklyDivHorizontalStartLTR"></div></td>
+      <td><div id="blocklyDivHorizontalStartRTL"></div></td>
+    </tr>
+    <tr>
+      <th>LTR, Horizontal, End</th>
+      <th>RTL, Horizontal, End</th>
+    </tr>
+    <tr>
+      <td><div id="blocklyDivHorizontalEndLTR"></div></td>
+      <td><div id="blocklyDivHorizontalEndRTL"></div></td>
+    </tr>
+  </table>
+
+  <xml xmlns="https://developers.google.com/blockly/xml" id="toolbox-simple" style="display: none">
+    <block type="controls_if"></block>
+    <block type="logic_compare"></block>
+    <!-- <block type="control_repeat"></block> -->
+    <block type="logic_operation"></block>
+    <block type="controls_repeat_ext">
+      <value name="TIMES">
+        <shadow type="math_number">
+          <field name="NUM">10</field>
+        </shadow>
+      </value>
+    </block>
+    <block type="logic_operation"></block>
+    <block type="logic_negate"></block>
+    <block type="logic_boolean"></block>
+    <block type="logic_null" disabled="true"></block>
+    <block type="logic_ternary"></block>
+  </xml>
+
+  <xml xmlns="https://developers.google.com/blockly/xml" id="toolbox-categories" style="display: none">
+    <category name="Logic" categorystyle="logic_category">
+      <block type="controls_if"></block>
+      <block type="logic_compare"></block>
+      <block type="logic_operation"></block>
+      <block type="logic_negate"></block>
+      <block type="logic_boolean"></block>
+      <block type="logic_null" disabled="true"></block>
+      <block type="logic_ternary"></block>
+    </category>
+    <category name="Loops" categorystyle="loop_category">
+      <block type="controls_repeat_ext">
+        <value name="TIMES">
+          <shadow type="math_number">
+            <field name="NUM">10</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="controls_repeat" disabled="true"></block>
+      <block type="controls_whileUntil"></block>
+      <block type="controls_for">
+        <value name="FROM">
+          <shadow type="math_number">
+            <field name="NUM">1</field>
+          </shadow>
+        </value>
+        <value name="TO">
+          <shadow type="math_number">
+            <field name="NUM">10</field>
+          </shadow>
+        </value>
+        <value name="BY">
+          <shadow type="math_number">
+            <field name="NUM">1</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="controls_forEach"></block>
+      <block type="controls_flow_statements"></block>
+    </category>
+    <category name="Math" categorystyle="math_category">
+      <block type="math_number" gap="32">
+        <field name="NUM">123</field>
+      </block>
+      <block type="math_arithmetic">
+        <value name="A">
+          <shadow type="math_number">
+            <field name="NUM">1</field>
+          </shadow>
+        </value>
+        <value name="B">
+          <shadow type="math_number">
+            <field name="NUM">1</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="math_single">
+        <value name="NUM">
+          <shadow type="math_number">
+            <field name="NUM">9</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="math_trig">
+        <value name="NUM">
+          <shadow type="math_number">
+            <field name="NUM">45</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="math_constant"></block>
+      <block type="math_number_property">
+        <value name="NUMBER_TO_CHECK">
+          <shadow type="math_number">
+            <field name="NUM">0</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="math_round">
+        <value name="NUM">
+          <shadow type="math_number">
+            <field name="NUM">3.1</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="math_on_list"></block>
+      <block type="math_modulo">
+        <value name="DIVIDEND">
+          <shadow type="math_number">
+            <field name="NUM">64</field>
+          </shadow>
+        </value>
+        <value name="DIVISOR">
+          <shadow type="math_number">
+            <field name="NUM">10</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="math_constrain">
+        <value name="VALUE">
+          <shadow type="math_number">
+            <field name="NUM">50</field>
+          </shadow>
+        </value>
+        <value name="LOW">
+          <shadow type="math_number">
+            <field name="NUM">1</field>
+          </shadow>
+        </value>
+        <value name="HIGH">
+          <shadow type="math_number">
+            <field name="NUM">100</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="math_random_int">
+        <value name="FROM">
+          <shadow type="math_number">
+            <field name="NUM">1</field>
+          </shadow>
+        </value>
+        <value name="TO">
+          <shadow type="math_number">
+            <field name="NUM">100</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="math_random_float"></block>
+      <block type="math_atan2">
+        <value name="X">
+          <shadow type="math_number">
+            <field name="NUM">1</field>
+          </shadow>
+        </value>
+        <value name="Y">
+          <shadow type="math_number">
+            <field name="NUM">1</field>
+          </shadow>
+        </value>
+      </block>
+    </category>
+    <category name="Text" categorystyle="text_category">
+      <block type="text"></block>
+      <block type="text_multiline"></block>
+      <block type="text_join"></block>
+      <block type="text_append">
+        <value name="TEXT">
+          <shadow type="text"></shadow>
+        </value>
+      </block>
+      <block type="text_length">
+        <value name="VALUE">
+          <shadow type="text">
+            <field name="TEXT">abc</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="text_isEmpty">
+        <value name="VALUE">
+          <shadow type="text">
+            <field name="TEXT"></field>
+          </shadow>
+        </value>
+      </block>
+      <block type="text_indexOf">
+        <value name="VALUE">
+          <block type="variables_get">
+            <field name="VAR">text</field>
+          </block>
+        </value>
+        <value name="FIND">
+          <shadow type="text">
+            <field name="TEXT">abc</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="text_charAt">
+        <value name="VALUE">
+          <block type="variables_get">
+            <field name="VAR">text</field>
+          </block>
+        </value>
+      </block>
+      <block type="text_getSubstring">
+        <value name="STRING">
+          <block type="variables_get">
+            <field name="VAR">text</field>
+          </block>
+        </value>
+      </block>
+      <block type="text_changeCase">
+        <value name="TEXT">
+          <shadow type="text">
+            <field name="TEXT">abc</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="text_trim">
+        <value name="TEXT">
+          <shadow type="text">
+            <field name="TEXT">abc</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="text_print">
+        <value name="TEXT">
+          <shadow type="text">
+            <field name="TEXT">abc</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="text_prompt_ext">
+        <value name="TEXT">
+          <shadow type="text">
+            <field name="TEXT">abc</field>
+          </shadow>
+        </value>
+      </block>
+    </category>
+    <category name="Lists" categorystyle="list_category">
+      <block type="lists_create_with">
+        <mutation items="0"></mutation>
+      </block>
+      <block type="lists_create_with"></block>
+      <block type="lists_repeat">
+        <value name="NUM">
+          <shadow type="math_number">
+            <field name="NUM">5</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="lists_length"></block>
+      <block type="lists_isEmpty"></block>
+      <block type="lists_indexOf">
+        <value name="VALUE">
+          <block type="variables_get">
+            <field name="VAR">list</field>
+          </block>
+        </value>
+      </block>
+      <block type="lists_getIndex">
+        <value name="VALUE">
+          <block type="variables_get">
+            <field name="VAR">list</field>
+          </block>
+        </value>
+      </block>
+      <block type="lists_setIndex">
+        <value name="LIST">
+          <block type="variables_get">
+            <field name="VAR">list</field>
+          </block>
+        </value>
+      </block>
+      <block type="lists_getSublist">
+        <value name="LIST">
+          <block type="variables_get">
+            <field name="VAR">list</field>
+          </block>
+        </value>
+      </block>
+      <block type="lists_split">
+        <value name="DELIM">
+          <shadow type="text">
+            <field name="TEXT">,</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="lists_sort"></block>
+    </category>
+    <category name="Colour" categorystyle="colour_category">
+      <block type="colour_picker"></block>
+      <block type="colour_random"></block>
+      <block type="colour_rgb">
+        <value name="RED">
+          <shadow type="math_number">
+            <field name="NUM">100</field>
+          </shadow>
+        </value>
+        <value name="GREEN">
+          <shadow type="math_number">
+            <field name="NUM">50</field>
+          </shadow>
+        </value>
+        <value name="BLUE">
+          <shadow type="math_number">
+            <field name="NUM">0</field>
+          </shadow>
+        </value>
+      </block>
+      <block type="colour_blend">
+        <value name="COLOUR1">
+          <shadow type="colour_picker">
+            <field name="COLOUR">#ff0000</field>
+          </shadow>
+        </value>
+        <value name="COLOUR2">
+          <shadow type="colour_picker">
+            <field name="COLOUR">#3333ff</field>
+          </shadow>
+        </value>
+        <value name="RATIO">
+          <shadow type="math_number">
+            <field name="NUM">0.5</field>
+          </shadow>
+        </value>
+      </block>
+    </category>
+    <sep></sep>
+    <category name="Variables" categorystyle="variable_category" custom="VARIABLE"></category>
+    <category name="Functions" categorystyle="procedure_category" custom="PROCEDURE"></category>
+  </xml>
+</body>
+</html>

LTR, Vertical, Start	RTL, Vertical, Start

LTR, Vertical, End	RTL, Vertical, End

LTR, Horizontal, Start	RTL, Horizontal, Start

LTR, Horizontal, End	RTL, Horizontal, End