What are the implications of invalid canonicals? Are they ignored? Back story, we are running Google Content Experiments comparing one page against another but we are constrained on this site to an antiquated bespoke CMS where we have very little control. We have added the canonical reference with a variable to the template but dont have anyway to check that the reference is set on a per page basis. On the pages where the canonical is not explicitly set we have the following: <link rel="canonical" href="{canonical}" /> Is this an issue or will Google (and other engines) just ignore it?
Hi rel="canonical" will not work, try with some other. I had used. The rel=canonical tag dos not work with http/https issues.