X-frame-option deny

Hello,

I have trouble to embed google maps on my website. I’m stuck with the following error :

Load denied by X-Frame-Options: https://www.google.ch/maps/place/Aula+des+Jeunes-Rives/@46.9937708,6.940253,17z/data=!3m1!4b1!4m5!3m4!1s0x478e0a3cd02b1599:0x7b968a6dce825f!8m2!3d46.9937672!4d6.9424417 does not permit cross-origin framing.

I tried to allow them in wp-includes/functions.php and .htaccess, but always with the same error.

I’m using wordpress 4.5.3 with the responsive theme. I tried different iframe pluggins, but always with the same result. Any idea where I could find a solution ?

Thanks in advance.