Since we are on K9, we got a problem.
URL written with starting // omitting the protocol got rewrite with only one /.
For exemple <p><img src="//foo.bar.com/funny404.png" /></p> is rewritten <p><img src="/foo.bar.com/funny404.png" /></p>
<p><img src="//foo.bar.com/funny404.png" /></p>
<p><img src="/foo.bar.com/funny404.png" /></p>
It looks like a regression since it was working in Kentico 7.
We actually fixed this bug in Kentico 10.0.15.
Where are you writing this? In a WYSIWYG editor? If so, it's not a Kentico thing, it's an issue with the CKEditor. I believe you can update the configuration to skip this sequence although I'm not 100% sure what the actual fix is.
You're right. It's in the WYSIWYG editor. I'll check that out and I'll keep you posted.
Thank you Zoltán, we will stick with our workaround then.
As our websites are now completly in HTTPS, we suggest our webmasters to prefix all their url with "https:".
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