Yes, reserved entities in HTML are case sensitive.
Browsers will be nice to you and accept whatever you give them, but you should be using the proper casing.
See also: https://www.w3.org/TR/html52/syntax.html#named-character-references
Solution 1 :
Solution 2 :
From the below resource:
https://www.tutorialrepublic.com/html-tutorial/html-entities.php
Note: HTML entities names are case-sensitive! Please check out the
HTML character entities reference for a complete list of character
entities of special characters and symbols
And From https://www.youth4work.com/Talent/html/Forum/117977-is-html-case-sensitive
Generally, HTML is case-insensitive, but there are a few exceptions.
Entity names (the things that follow ampersands) are case-senstive,
but many browsers will accept many of them entirely in uppercase or
entirely in lowercase; a few must be cased in particular ways. For
example, Ç is Ç and ç is ç. Other combinations of upper
and lower case are no good.
Problem :
HTML in general is case insensitive. However I`ve noticed some escape names are case sensitive. For example , Á and á.
Is & case sensitive regarding HTML standard?
Comments
Comment posted by w3.org/International/questions/qa-escapes
Note that the name is case sensitive: in HTML, Á represents the uppercase letter Á, whereas á represents the lowercase á.
Comment posted by Alex
I suppose correct one is low case: &. thank you
Comment posted by Brad
@Alex That is correct,