Question

I was browsing a site and found this line of code:

<div class="section slideshow" id="/featured/">

I’ve never seen slashes in an id tag before, is this poor coding, a problem written out by the database, or something else?

Answer 1

Slashes in an id attribute is not a valid character:

ID and NAME tokens must begin with a letter ([A-Za-z]) and may be
followed by any number of letters, digits ([0-9]), hyphens (“-“),
underscores (“_”), colons (“:”), and periods (“.”).