I tried what privii said:
Site settings > URLs > Use pretty URLs
and got this error:
<span class=”html-tag”><Error></span>
<span class=”html-tag”></span>AccessDenied<span class=”html-tag”>
</span>
<span class=”html-tag”><Message></span>Access Denied<span class=”html-tag”></Message></span>
<span class=”html-tag”><RequestId></span>JF26XZY9WAAY8HWZ<span class=”html-tag”></RequestId></span>
<span class=”html-tag”><HostId></span>txpGx1a7WtTWLGkZFAgQZvtqWs9zPDuu+mlgaOVrTfQzxxDiWobkyo2AZekU5k6WmQQh6MEaogk=<span class=”html-tag”></HostId></span>
<span class=”html-tag”></Error></span>