Thanks Vytis, I’ve seen this, but according to this article (and some others as well) having rel=canonical is crucial for SEO:
https://www.keycdn.com/blog/best-seo-cdn
“An extra HTTP header added to your Zone lets the crawler know, that the content from the CDN is only a copy. Once we add rel=”canonical” to the HTTP header, we’re on the safe side. Crawlers are aware that this is only a copy.”
And currently Optimole is not doing it (except for placeholders) which is a big shame.