Netlify site name: ‘lovely-semifreddo-4bea40’
Custom domain: www.bipbapbop.com
My site is PDF heavy and I load 2 variants of every PDF, one optimized for US printers which use the Letter page size, and one for non-US printers which use the A4 page size. This results in 2 URLS for each image which are almost identical e.g.
Google is now identifying these pages as ‘duplicate without user-selected canonical’ so I have removed 1 variant from my sitemap and am trying to put a canonical in the header of one of the pdfs.
I’ve read this document Custom headers | Netlify Docs and created a _headers file.
I’ve tried two approaches after reading How To: Advanced rel="canonical" HTTP Headers - Moz and a few other articles, but neither appeared to work when I inspected the page and searched for canonical.
I’d really appreciate an example of the correct code for the canonical that I can implement.
Thank you!
Matt
I don’t see any headers being set at least on your published deploy. How are you setting it?
I’m trying to set them using the _headers file but it’s not working.
I was assuming that the code I was using in the _headers file (which I’ve listed above) was incorrect?
Oh sorry, I missed that code. I thought it was something different as that’s not how you configure headers. Netlify documentation: Custom headers | Netlify Docs already shows how to create headers, so I’m not sure why you tried other formats.
In your case, it could be like:
/documents/mummy-baby-cow-coloring-page-printable-pdf-a4.pdf
Link: <https://www.bipbapbop.com/documents/happy-cow-coloring-sheet-free-printable-pdf-download-letter.pdf>; rel="canonical"
1 Like
Thanks for the code! I’ve updated the _headers file accordingly, but when I inspect the pdf in chrome I still don’t see anything in the . Is this expected?
This is the URL I was looking on:
https://www.bipbapbop/documents/cute-kitty-police-officer-free-pdf-coloring-page-a4.pdf
Thank you so much for your help!
Can I ask what you’re using to get the in browser information?
When I do a standard inspect in chrome’s dev tools I don’t see the canonical.
Thanks again for your help! Problem solved 
