Couple of issues affecting page load speed

**shags38** · 29 Sep 2020, 07:12 AM

v1.5.5f westminster_new template

1. Google Lighthouse is suggesting DOCTYPE is causing issues - (likely because it is not HTML5 ?? - is upgrading the only way to resolve this?).

HTML Code:

Browser Compatibility
Page lacks the HTML doctype, thus triggering quirks-modeExpected publicId to be an empty string
Specifying a doctype prevents the browser from switching to quirks-mode

This is my DOCTYPE: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" <?php echo HTML_PARAMS; ?>>

2. Can I simply change this to 'yes' without affecting the site?;

HTML Code:

Best practicesThese items highlight common accessibility best practices.
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more.
Failing Elements
meta
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no">

3. Can this javascript be upgraded to a newer version? (or does this require a ZC version upgrade?);

HTML Code:

Trust and Safety
Includes front-end JavaScript libraries with known security vulnerabilities 4 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers. Learn more.
Library Version: [email protected]	
Vulnerability Count: 4
Highest Severity: Medium

4. Avoid document.write()
For users on slow connections, external scripts dynamically injected via `document.write()` can delay page load by tens of seconds. Learn more.
URL Location: https://www.dazzlerscliponearrings.com.au
line: 32

HTML Code:

<script type="text/javascript">window.jQuery || document.write(unescape('%3Cscript type="text/javascript" src="//code.jquery.com/jquery-1.11.1.min.js"%3E%3C/script%3E'));</script>
<script type="text/javascript">window.jQuery || document.write(unescape('%3Cscript type="text/javascript" src="includes/templates/westminster_new/jscript/jquery.min.js"%3E%3C/script%3E'));</sc

Thanks,
Mike

**mc12345678** · 29 Sep 2020, 01:22 PM

Addressing only item 3 here. The version can be upgraded to whatever works for your existing content. It is possible that when upgrading the jQuery version that other jQuery related software may not work or may not work correctly and it/that may need modification/upgrade to work within the newere jQuery version.

That said, more recent versions of Zen Cart adopt newer versions of jQuery to have the built in tools already compatible. Testing/revision should be done on a test site that is not your live site. Once the issues have been worked out then they can/should be carried over. Don't mess with your live site if it is functional. Such applies to addressing the other issues as well.

**DrByte** · 30 Sep 2020, 03:02 AM

Regarding #4. The code it's complaining about is just fallback code which only gets triggered if jQuery hasn't already been loaded. Therefore it's harmless, especially if you do actually already have local jquery files installed.
That said, since everyone seems to think Google is God and therefore should be obeyed at all costs, go ahead and remove those document.write lines. The worst that happens is if you screw things up on your site there won't be any fallbacks to save you from your mistake. Google seems to like that.