Real world case:
https://openlibrary.org/books/OL26228110M
This is a hardcover edition of a book, one of six editions. It has an ISBN-10 of 1449483488. The link 'Find a physical copy near you' creates a URL based on the ISBN-10, which is http://worldcat.org/isbn/1449483488 . The problem is - if you browse to this, this ISBN on WorldCat is a compilation entry for the entire series (which happens to include that ISBN in a list of about 10).
While one can argue that this is a problem with Worldcat (that it should return most specific ISBN results when available), OL can solve it for themselves simply like this:
If an OCLC number is explicitly provided for a given book edition, the 'Find a physical copy near you' link should use (in this example) http://www.worldcat.org/oclc/952649184 , NOT http://worldcat.org/isbn/1449483488. In other words, we should assume that when a contributor puts in an OCLC number, they know what they're doing and that specific OCLC is there for a reason.
Just commented at #324
This should be using https as described there.
Addressed @LeadSongDog's https change (where possible) in the two files I'm editing.
@skylerbunny @mekarpeles The WorldCat link for the edition in the issue properly redirects to this OCLC url: https://www.worldcat.org/title/phoebe-and-her-unicorn/oclc/952649184. I'm proposing we close this issue. Let me know your thoughts.
Yep; looks like it's fixed