title: Firepath define xpath, but Selenium IDE -> "locator not found"
body: <p>I have a button:</p>
  
  <pre><code>&lt;button class="pure-field-button" type="button" id="yui_3_5_0_1_1394785205896_6061" style="background-color: rgb(238, 238, 238);"&gt;&lt;i class="fa fa-user"&gt;&lt;/i&gt;&lt;/button&gt;
  </code></pre>
  
  <p>Here is what I get and verify in Firepath, no any error in Firepath </p>
  
  <pre><code>//button[contains(@id, 'yui_3_5_0_1') and @class="pure-field-button"]
  </code></pre>
  
  <p>when I try to put it Selenium IDE </p>
  
  <pre><code>Command: click
  Target: //button[contains(@id, 'yui_3_5_0_1') and @class="pure-field-button"]
  
  Error: locator not found
  </code></pre>
  
  <p>Any suggestion?</p>
  
  <p>Code. The button is in the last row </p>
  
  <pre><code>&lt;head&gt;
  &lt;body id="yui_3_5_0_1_1394792924659_843" class="yui3-skin-sam"&gt;
  &lt;div class="yui3-widget-mask" style="position: fixed; width: 100%; height: 100%; top:   0px; left: 0px; z-index: 2;"&gt;&lt;/div&gt;
  &lt;div id="yui_3_5_0_1_1394792924659_5326" class="yui3-dd-draggable yui3-widget yui3-panel    yui3-widget-positioned yui3-widget-modal yui3-widget-stacked yui3-panel-focused"   style="width: 610px; left: 323px; top: 263.5px; z-index: 2;" tabindex="0"&gt;
  &lt;div id="yui_3_5_0_1_1394792924659_5327" class="yui3-panel-content yui3-widget-stdmod"&gt;
  &lt;div class="yui3-widget-hd"&gt;Новый абонент&lt;/div&gt;
  &lt;div id="yui_3_5_0_1_1394792924659_5555" class="yui3-widget-bd"&gt;
  &lt;div id="yui_3_5_0_1_1394792924659_5554" class="form-container"&gt;
  &lt;form id="yui_3_5_0_1_1394792924659_2237" class="pure-form pure-g"&gt;
  &lt;div class="block-overlay" hidden="hidden" style="display: none; width: 594px; height: 177px;"&gt;
  &lt;fieldset id="yui_3_5_0_1_1394792924659_5553" class="pure-u-1"&gt;
  &lt;legend&gt;
  &lt;div id="yui_3_5_0_1_1394792924659_5552" class="pure-field-group pure-field-with-button required"&gt;
  &lt;div class="pure-u-11-24 pure-field-label-container"&gt;
  &lt;div id="yui_3_5_0_1_1394792924659_5551" class="pure-u-11-24"&gt;
  &lt;button id="yui_3_5_0_1_1394792924659_5550" class="pure-field-button" type="button"&gt;
  </code></pre>