<h3 dir="auto">Problem description</h3>
<p dir="auto">When a click for the first time on a Link which is inside of a MenuItem and an IconMenu it shows the following warning in the browser's console :</p>
<p dir="auto">warning.js:44 Warning: Unknown props <code class="notranslate">desktop</code>, <code class="notranslate">focusState</code> on  tag. Remove these props from the element. For details, see <a href="https://fb.me/react-unknown-prop" rel="nofollow">https://fb.me/react-unknown-prop</a><br>
in a (created by Link)<br>
in Link (created by Menu)<br>
in div (created by List)<br>
in List (created by Menu)<br>
in div (created by Menu)<br>
in ClickAwayListener (created by Menu)<br>
in Menu (created by IconMenu)<br>
in div (created by PopoverDefaultAnimation)<br>
in div (created by PopoverDefaultAnimation)<br>
in div (created by Paper)<br>
in Paper (created by PopoverDefaultAnimation)<br>
in PopoverDefaultAnimation</p>
<p dir="auto">The waring it is display just the firs time you click on it, subsequent clicks no longer display the warining</p>
<h3 dir="auto">Steps to reproduce</h3>
<p dir="auto">Use the following  code and click on "settings" item :</p>
<p dir="auto">import IconButton from 'material-ui/IconButton';<br>
import IconMenu from 'material-ui/IconMenu';<br>
import MenuItem from 'material-ui/MenuItem';<br>
import ArrowDropRight from 'material-ui/svg-icons/navigation-arrow-drop-right';<br>
import Divider from 'material-ui/Divider';<br>
import SettingsIcon from 'material-ui/svg-icons/action/settings';<br>
import ConnectIcon from 'material-ui/svg-icons/action/settings-remote';</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="&lt;IconMenu iconButtonElement={
              &lt;IconButton tooltipPosition=&quot;top-left&quot; &gt;
                &lt;DashboardIcon/&gt;
              &lt;/IconButton&gt;
            }
          targetOrigin={{horizontal: 'right', vertical: 'top'}}
          anchorOrigin={{horizontal: 'right', vertical: 'top'}}&gt;
          &lt;MenuItem
            primaryText=&quot;settings&quot;
            leftIcon={&lt;SettingsIcon /&gt;}
            rightIcon={&lt;ArrowDropRight /&gt;}
            menuItems={[
              &lt;Link to=&quot;/settings&quot; style={{textDecoration:'none'}}&gt;
                &lt;MenuItem primaryText=&quot;connect&quot; leftIcon={&lt;ConnectIcon /&gt;}/&gt;
              &lt;/Link&gt;
            ]}
          /&gt;
&lt;/IconMenu&gt;"><pre class="notranslate"><code class="notranslate">&lt;IconMenu iconButtonElement={
              &lt;IconButton tooltipPosition="top-left" &gt;
                &lt;DashboardIcon/&gt;
              &lt;/IconButton&gt;
            }
          targetOrigin={{horizontal: 'right', vertical: 'top'}}
          anchorOrigin={{horizontal: 'right', vertical: 'top'}}&gt;
          &lt;MenuItem
            primaryText="settings"
            leftIcon={&lt;SettingsIcon /&gt;}
            rightIcon={&lt;ArrowDropRight /&gt;}
            menuItems={[
              &lt;Link to="/settings" style={{textDecoration:'none'}}&gt;
                &lt;MenuItem primaryText="connect" leftIcon={&lt;ConnectIcon /&gt;}/&gt;
              &lt;/Link&gt;
            ]}
          /&gt;
&lt;/IconMenu&gt;
</code></pre></div>
<h3 dir="auto">Versions</h3>
<ul dir="auto">
<li>Material-UI: 0.15.4</li>
<li>React: 15.0.2</li>
<li>Browser: Chrome Version 52.0.2743.116 (64-bit)</li>
</ul>
<h3 dir="auto">Spotted errors</h3>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="Warning: Unknown props `desktop`, `focusState` on &lt;a&gt; tag. Remove these props from the element.
  in a (created by Link)
  in Link (created by Menu)
  in div (created by List)
  in List (created by Menu)
  in div (created by Menu)
  in ClickAwayListener (created by Menu)
  in Menu (created by IconMenu)
  in div (created by PopoverDefaultAnimation)
  in div (created by PopoverDefaultAnimation)
  in div (created by Paper)
  in Paper (created by PopoverDefaultAnimation)
  in PopoverDefaultAnimationwarning 

Warning: Unknown prop `onKeyboardFocus` on &lt;div&gt; tag. Remove this prop from the element.
  in div (created by MyComponent)
  in div (created by ListItem)
  in div (created by TouchRipple)
  in TouchRipple (created by EnhancedButton)
  in span (created by EnhancedButton)
  in EnhancedButton (created by ListItem)
  in div (created by ListItem)
  ..."><pre class="notranslate"><code class="notranslate">Warning: Unknown props `desktop`, `focusState` on &lt;a&gt; tag. Remove these props from the element.
  in a (created by Link)
  in Link (created by Menu)
  in div (created by List)
  in List (created by Menu)
  in div (created by Menu)
  in ClickAwayListener (created by Menu)
  in Menu (created by IconMenu)
  in div (created by PopoverDefaultAnimation)
  in div (created by PopoverDefaultAnimation)
  in div (created by Paper)
  in Paper (created by PopoverDefaultAnimation)
  in PopoverDefaultAnimationwarning 

Warning: Unknown prop `onKeyboardFocus` on &lt;div&gt; tag. Remove this prop from the element.
  in div (created by MyComponent)
  in div (created by ListItem)
  in div (created by TouchRipple)
  in TouchRipple (created by EnhancedButton)
  in span (created by EnhancedButton)
  in EnhancedButton (created by ListItem)
  in div (created by ListItem)
  ...
</code></pre></div>
<h3 dir="auto">Steps to reproduce</h3>
<div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="import React, { Component, PropTypes } from 'react'
import { Link } from 'react-router'

...

&lt;AppBar
    iconElementRight={
        &lt;IconMenu
            iconButtonElement={&lt;IconButton&gt;&lt;MenuIcon color={white} /&gt;&lt;/IconButton&gt;}
            targetOrigin={{horizontal: 'right', vertical: 'top'}}
            anchorOrigin={{horizontal: 'right', vertical: 'top'}}
        &gt;
            &lt;Link to='/route1'&gt;
                &lt;MenuItem leftIcon={&lt;Person /&gt;} primaryText='Item 1' /&gt;
            &lt;/Link&gt;
            &lt;Link to='/route2'&gt;
                &lt;MenuItem leftIcon={&lt;SupervisorAccounts /&gt;} primaryText='Item 2' /&gt;
            &lt;/Link&gt;
            &lt;Link to='/route3'&gt;
                &lt;MenuItem leftIcon={&lt;ViewList /&gt;} primaryText='Item 3' /&gt;
            &lt;/Link&gt;
            &lt;Divider /&gt;
            &lt;Link to='/route4'&gt;
                &lt;MenuItem leftIcon={&lt;PowerSettingNew /&gt;} primaryText='Item 4' /&gt;
            &lt;/Link&gt;
        &lt;/IconMenu&gt;
    }
/&gt;"><pre class="notranslate"><span class="pl-k">import</span> <span class="pl-v">React</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-v">Component</span><span class="pl-kos">,</span> <span class="pl-v">PropTypes</span> <span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">'react'</span>
<span class="pl-k">import</span> <span class="pl-kos">{</span> <span class="pl-v">Link</span> <span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">'react-router'</span>

<span class="pl-kos">.</span><span class="pl-kos">.</span><span class="pl-kos">.</span>

<span class="pl-c1">&lt;</span><span class="pl-v">AppBar</span>
    <span class="pl-s1">iconElementRight</span><span class="pl-c1">=</span><span class="pl-kos">{</span>
        <span class="pl-c1">&lt;</span><span class="pl-ent">IconMenu</span>
            <span class="pl-c1">iconButtonElement</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">&lt;</span><span class="pl-ent">IconButton</span><span class="pl-c1">&gt;</span><span class="pl-c1">&lt;</span><span class="pl-ent">MenuIcon</span> <span class="pl-c1">color</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-s1">white</span><span class="pl-kos">}</span> <span class="pl-c1">/</span><span class="pl-c1">&gt;</span><span class="pl-c1">&lt;</span><span class="pl-c1">/</span><span class="pl-ent">IconButton</span><span class="pl-c1">&gt;</span><span class="pl-kos">}</span>
            <span class="pl-c1">targetOrigin</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-kos">{</span><span class="pl-c1">horizontal</span>: <span class="pl-s">'right'</span><span class="pl-kos">,</span> <span class="pl-c1">vertical</span>: <span class="pl-s">'top'</span><span class="pl-kos">}</span><span class="pl-kos">}</span>
            <span class="pl-c1">anchorOrigin</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-kos">{</span><span class="pl-c1">horizontal</span>: <span class="pl-s">'right'</span><span class="pl-kos">,</span> <span class="pl-c1">vertical</span>: <span class="pl-s">'top'</span><span class="pl-kos">}</span><span class="pl-kos">}</span>
        <span class="pl-c1">&gt;</span>
            <span class="pl-c1">&lt;</span><span class="pl-ent">Link</span> <span class="pl-c1">to</span><span class="pl-c1">=</span><span class="pl-s">'/route1'</span><span class="pl-c1">&gt;</span>
                <span class="pl-c1">&lt;</span><span class="pl-ent">MenuItem</span> <span class="pl-c1">leftIcon</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">&lt;</span><span class="pl-ent">Person</span> <span class="pl-c1">/</span><span class="pl-c1">&gt;</span><span class="pl-kos">}</span> <span class="pl-c1">primaryText</span><span class="pl-c1">=</span><span class="pl-s">'Item 1'</span> <span class="pl-c1">/</span><span class="pl-c1">&gt;</span>
            <span class="pl-c1">&lt;</span><span class="pl-c1">/</span><span class="pl-ent">Link</span><span class="pl-c1">&gt;</span>
            <span class="pl-c1">&lt;</span><span class="pl-ent">Link</span> <span class="pl-c1">to</span><span class="pl-c1">=</span><span class="pl-s">'/route2'</span><span class="pl-c1">&gt;</span>
                <span class="pl-c1">&lt;</span><span class="pl-ent">MenuItem</span> <span class="pl-c1">leftIcon</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">&lt;</span><span class="pl-ent">SupervisorAccounts</span> <span class="pl-c1">/</span><span class="pl-c1">&gt;</span><span class="pl-kos">}</span> <span class="pl-c1">primaryText</span><span class="pl-c1">=</span><span class="pl-s">'Item 2'</span> <span class="pl-c1">/</span><span class="pl-c1">&gt;</span>
            <span class="pl-c1">&lt;</span><span class="pl-c1">/</span><span class="pl-ent">Link</span><span class="pl-c1">&gt;</span>
            <span class="pl-c1">&lt;</span><span class="pl-ent">Link</span> <span class="pl-c1">to</span><span class="pl-c1">=</span><span class="pl-s">'/route3'</span><span class="pl-c1">&gt;</span>
                <span class="pl-c1">&lt;</span><span class="pl-ent">MenuItem</span> <span class="pl-c1">leftIcon</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">&lt;</span><span class="pl-ent">ViewList</span> <span class="pl-c1">/</span><span class="pl-c1">&gt;</span><span class="pl-kos">}</span> <span class="pl-c1">primaryText</span><span class="pl-c1">=</span><span class="pl-s">'Item 3'</span> <span class="pl-c1">/</span><span class="pl-c1">&gt;</span>
            <span class="pl-c1">&lt;</span><span class="pl-c1">/</span><span class="pl-ent">Link</span><span class="pl-c1">&gt;</span>
            <span class="pl-c1">&lt;</span><span class="pl-ent">Divider</span> <span class="pl-c1">/</span><span class="pl-c1">&gt;</span>
            <span class="pl-c1">&lt;</span><span class="pl-ent">Link</span> <span class="pl-c1">to</span><span class="pl-c1">=</span><span class="pl-s">'/route4'</span><span class="pl-c1">&gt;</span>
                <span class="pl-c1">&lt;</span><span class="pl-ent">MenuItem</span> <span class="pl-c1">leftIcon</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">&lt;</span><span class="pl-ent">PowerSettingNew</span> <span class="pl-c1">/</span><span class="pl-c1">&gt;</span><span class="pl-kos">}</span> <span class="pl-c1">primaryText</span><span class="pl-c1">=</span><span class="pl-s">'Item 4'</span> <span class="pl-c1">/</span><span class="pl-c1">&gt;</span>
            <span class="pl-c1">&lt;</span><span class="pl-c1">/</span><span class="pl-ent">Link</span><span class="pl-c1">&gt;</span>
        <span class="pl-c1">&lt;</span><span class="pl-c1">/</span><span class="pl-ent">IconMenu</span><span class="pl-c1">&gt;</span>
    <span class="pl-kos">}</span>
<span class="pl-c1">/</span>&gt;</pre></div>
<h3 dir="auto">Versions</h3>
<ul dir="auto">
<li>Material-UI: 0.15.3</li>
<li>React: 15.3.0</li>
<li>React-router: 2.6.1</li>
<li>Browser: Chrome</li>
</ul>
<h3 dir="auto">Description</h3>
<p dir="auto">Despite lot of warnings were removed with MUI 15.3, the 2 above still remains.<br>
The first warning triggers after clicking on the menu icon.<br>
The 2nd one is from loading another page</p>