When using Favic-o-Matic to generate favicons for my website, I'm curious about two things: why does the generated HTML code use absolute paths for favicon links, and can I include my own custom server-side code, like PHP, within the generated HTML for my favicon implementation? Please explain.
Navigate to favicomatic.com. Click on the 'advanced settings' link. Locate the 'website URL' input field and click the associated information icon next to it. Identify and extract the explanation regarding the use of absolute paths in the generated HTML code. Identify and extract the confirmation regarding the use of arbitrary code in the generated HTML.
State that the generated HTML code uses absolute paths because some Firefox versions require them, and all browsers support them, making it the simplest choice. Confirm that arbitrary code can also be used, providing the example given on the site (e.g., `<?php echo $_SERVER['SERVER_NAME']; ?>`).