Google's problems with Gantry 5
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- BrettD
- Jr. Rocketeer
- Posts: 32
- Thanks: 3
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I've been running the Google chrome plugin, Lighthouse ("automated tool for improving the quality of web pages") on my pre-release, testing-phase ambrosia site. I am running the newest G5.
Google Lighthouse reports the following deficiencies under Best Practices:
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We've compiled some recommendations for modernizing your web app and avoiding performance pitfalls.
Uses passive listeners to improve scrolling performance
Consider marking your touch and wheel event listeners as `passive` to improve your page's scroll performance."
URL: ../media/gantry5/assets/js/main.js (cited twice)
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Avoids Mutation Events in its own scripts
Mutation Events are deprecated and harm performance. Consider using Mutation Observers instead.
URL: ../media/gantry5/assets/js/main.js
snippet: div#g-offcanvas.addEventListener('DOMSubtreeModified', function (t){i.prototype.emit.call(a,u,t||window.event,i.EMIT_SYNC)})
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Why is RocketTheme's Gantry 5 using mutation events that are deprecated and harm performance according to Google?
Could you please fix these. Thanks.
I'd like to note that "Google's Best Practices" score DROPPED 8 percentage points from my 8-year-old RT solarsentinel template on J1.5 to the current Gantry 5 ambrosia template on J3.7.
Brett - Last Edit: 6 years 9 months ago by BrettD.
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- Matt
- Preeminent Rocketeer
- Posts: 21561
- Thanks: 3090
- messin' with stuff
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I would recommend posting on the Gantry 5 GitHub which is the main repo for the G5 open source code and community of developers.
github.com/gantry/gantry5/issues - SEARCH the forum first! These boards are rich in knowledge and vast in topics. This includes searching just the 'Solved' forums, using Google, and using ChatGPT
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- Matt
- Preeminent Rocketeer
- Posts: 21561
- Thanks: 3090
- messin' with stuff
- That's where the Gantry 5 developers will see it. The boards are here in support of the Themes and general product knowledge
- SEARCH the forum first! These boards are rich in knowledge and vast in topics. This includes searching just the 'Solved' forums, using Google, and using ChatGPT
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- Patrick Toulze
- Elite Rocketeer
- Posts: 1810
- Thanks: 18
- Marketing - Web Designer
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To people that want to know...
The Issue is there —> github.com/gantry/gantry5/issues/2056
Answer:
You can safely ignore those warnings, they are used to support older versions of IE. -
The following users have thanked you: Matt
- Graphic Designer - Marketing -Web Sites — Trying to become a decent human being.
www.grafcomm.ca
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