exmage not importing -> Invalid image URL

hello, i try to import images from a CDN, the url is correct but the CDN seems to use cloudflare.

Cloudflare use content-security-policy header and xrf-token cookies in his reponses and it seems to block exmage :

Array
(
[url] => https://admin.imbretex.fr/media-produit/86412/20/2/576930/13140414/GN180_IY_back.jpg
[message] => Invalid image URL
[status] => error
[id] =>
[edit_link] =>
)

Any advise to get it works ?

Nico