Topics started by Josh_berry-jenkins

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Josh_berry-jenkins
Josh_berry-jenkins
posted in Ask a Question

SRC Swap Optimisation

I understand that images should automatically preload on Unbounce, but I wondered how exactly this process works, and whether we can preload images not shown on page load? For context, I’ve been diving into working with images lately, primarily swapping the src via a click event listener. I’ve figured out that to do this I have to: Change the src Change the srcset Which to do dynamically (for images of different sizes), requires some work arounds, such as storing the actual size parameters of the element as data attributes etc. Which could be a whole 'nother topic itself… With all this in place and some optimisation later I found that the click events handling the src swap were quite slow first time around and faster after all combinations had been achieved. From best I can gather from the network tab of the dev tools this was due to the initial clicks requiring fetch requests for the images which were later cached. Presumably this happened because of the size difference fro

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Josh_berry-jenkins
3 years ago

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