Google Explains How To Inject Canonical Tags Using JavaScript In Updated Doc

Jun 30, 2022 • 7:11 am | comments (0) by twitter | Filed Under Google Search Engine Optimization
 

Google has updated its JavaScript SEO help document to add a new section on how to properly inject canonical link tags using JavaScript. The document says Google does not recommend using JavaScript for this, however "it is possible to inject a rel=canonical link tag with JavaScript."

The help document adds that "Google Search will pick up the injected canonical URL when rendering the page."

A note Google made is that "when using JavaScript to inject the rel="canonical" link tag, make sure that this is the only rel="canonical" link tag on the page. Incorrect implementations might create multiple rel="canonical" link tag or change an existing rel="canonical" link tag. Conflicting or multiple rel="canonical" link tags may lead to unexpected results."

Here is a code example of how to do this:

Previously, as Google is doing now, Google warned against doing it this way but did say it can work.

Forum discussion at Twitter.

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