Dear Reporter, Thank you taking time to file this bug and providing all the required information. As mentioned in the previous comment, we strongly suspect that the header `X-Frame-Options: deny` was added by the proxy and not the original website. I visited the website https://www.golem.de/ with devtools opened. I could not see the `X-Frame-Options` header. Could you please confirm this? If this is the case you could try disabling it as temporary fix. Thanks
Bug 1809151 Comment 11 Edit History
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Dear Reporter, Thank you taking time to file this bug and providing all the required information. As mentioned in the previous comment, we strongly suspect that the header `X-Frame-Options: deny` was added by the proxy and not the original website. I visited the website https://www.golem.de/ with devtools opened. I could not see the `X-Frame-Options` header. Could you please confirm this header was added by the proxy and not by the original site? If this is the case you could try disabling it as temporary fix. Thanks