what is wrong with those codes? (Objective - c) : <p><a href="https://i.stack.imgur.com/JLhkA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JLhkA.png" alt="enter image description here"></a></p>

<p>the / is fine but the % just dose not work.  I don't know why...</p>
