I've already created a sign up page for my website as index.cgi but it would seem that the email address input box cannot accept any input at all.

However, it works just fine when the page is made into an html file.

I've tried using:
  qq|| = caused a 500 internal server error
  qq{} and qq() = the page loads fine but email address box is unable to accept any input. 

# Here's the pseudocode

print "Content-type: text/html\r\n\r\n";

print qq{
<!DOCTYPE html>
<html>
    <head>
    </head>
    <body>
    <input type="email" name="emailAddress" class="inputBox" placehold
+er="Email Address" id="emailBox" pattern="[a-z0-9!#$%&'*+/=?^_`{|}~-]
++(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9]
+)?\.)+(?:[A-Z]{2}|com|org|net|gov|mil|biz|info|mobi|name|aero|jobs|mu
+seum)\b" required>
    </body>
</html>};

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In reply to How to print an HTML input tag with its regex pattern in Perl CGI? by underTheRadar

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