Getting net::ERR_UNKNOWN_URL_SCHEME while calling telephone number with ionic
<p>I have this code in config.xml </p>

<pre><code>&lt;content src="index.html"/&gt;
&lt;access origin="*"/&gt;
&lt;allow-navigation href="tel:*" /&gt;
&lt;allow-intent href="tel:*"/&gt;
&lt;allow-intent href="mailto:*"/&gt;
&lt;allow-intent href="http://*/*"/&gt;
&lt;allow-navigation href="tel:*"/&gt;
&lt;allow-navigation href="http://*/*"/&gt;
&lt;allow-navigation href="https://*/*"/&gt;
&lt;access origin="mailto:*" launch-external="true" /&gt;
&lt;access origin="tel:*" launch-external="true" /&gt;
</code></pre>

<p>This in HTML: </p>

<pre><code>&lt;a ng-href="tel:{{item.phone}}"&gt;&lt;h3&gt;Anrufen&lt;/h3&gt;&lt;/a&gt;
</code></pre>

<p>item.phone returns 0331234567</p>

<p>in index.html: </p>

<pre><code>&lt;meta name="format-detection" content="telephone=yes"&gt;
</code></pre>

<p>What's my mistake?</p>