I use GTmetrix to measure my website's performance regularly. It makes suggestions as to optimisations.
One issue I'm currently getting highlighted by the tool is "Serve resources from a consistent URL - The following resources have identical contents, but are served from different URLs. Serve these resources from a consistent URL"
I've disabled and re-enabled Netlify asset optimisation, as well as changing my jekyll-assets config to no luck. It seems that <img src> asset references are always served with the CloudFront domain, whilst <link href> references are always served off the Netlify origin domain.
Here are the extracts of the Netlify produced source code; where simpler-bulb-primary-dark.svg is the exact same resource unnecessarily duplicated by two different HTTP requests:
<link rel="preload" as="image" href="/assets/simpler-bulb-primary-dark.svg"> & <img width="250" height="250" alt="Smart Helping Hands logo" src="https://d33wubrfki0l68.cloudfront.net/abdba9c31570febda716627613edee7c1b7b9338/057de/assets/simpler-bulb-primary-dark.svg" integrity="sha256-5z1P4yeVXgVsxe/bywcAGcessUwED2e8NgmMsxRhKBo=" crossorigin="anonymous">'
Is this a bug in Netlify, or is there a way of fixing this behaviour?
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My question in a little more detail
I use GTmetrix to measure my website's performance regularly. It makes suggestions as to optimisations.
One issue I'm currently getting highlighted by the tool is "Serve resources from a consistent URL - The following resources have identical contents, but are served from different URLs. Serve these resources from a consistent URL"
I've disabled and re-enabled Netlify asset optimisation, as well as changing my
jekyll-assetsconfig to no luck. It seems that<img src>asset references are always served with the CloudFront domain, whilst<link href>references are always served off the Netlify origin domain.Here are the extracts of the Netlify produced source code; where
simpler-bulb-primary-dark.svgis the exact same resource unnecessarily duplicated by two different HTTP requests:<link rel="preload" as="image" href="/assets/simpler-bulb-primary-dark.svg"> & <img width="250" height="250" alt="Smart Helping Hands logo" src="https://d33wubrfki0l68.cloudfront.net/abdba9c31570febda716627613edee7c1b7b9338/057de/assets/simpler-bulb-primary-dark.svg" integrity="sha256-5z1P4yeVXgVsxe/bywcAGcessUwED2e8NgmMsxRhKBo=" crossorigin="anonymous">'Is this a bug in Netlify, or is there a way of fixing this behaviour?