HTML Guide for fragment
An <a> element has been found with an invalid href attribute, containing more than one # adjacent character.
The # is used to separate the fragment part of an URI (typically used to indicate a section within a document). For example, this is a valid link to a URI containing a fragment:
<a href="https://example.com/faqs#pricing">pricing</a>The next example is invalid because it contains two adjacent # characters, so that the fragment part would be #pricing instead of pricing:
<a href="https://example.com/faqs##pricing">pricing</a>Curly braces {} are not allowed in the href attribute value of an <a> element because they are not permitted in valid URLs.
According to the HTML standard and URL specification, certain characters—including { and }—must be percent-encoded in URLs to avoid validation errors and ensure proper browser handling. If you need to include a curly brace in a URL, use percent-encoding: { is %7B and } is %7D.
Incorrect HTML:
<a href="http://example.com/?i=470722{0}">Link</a>Correct HTML with percent-encoding:
<a href="http://example.com/?i=470722%7B0%7D">Link</a>Resulting link:
http://example.com/?i=470722%7B0%7D
Only use plain { or } if you are generating URLs client-side (for example, as template placeholders in JavaScript). To validate properly, always encode or remove illegal characters in attribute values.
The href attribute in the a tag uses an invalid character, as > is not allowed in URL fragments.
According to the HTML standard and URL syntax, fragment identifiers (the part after #) can only contain certain characters. The > character is not permitted and must be removed or percent-encoded. If the > is unintentional, simply omit it; if it must be included as part of the fragment, encode it as %3E.
Original HTML (invalid):
<a href="/page.php>">Read more</a>Corrected HTML (if > should not be present):
<a href="/page.php">Read more</a>Corrected HTML (if > is required in fragment, encode it):
<a href="/page.php%3E">Read more</a>