Hello community, I received a warning from semrush after running a website audit, it concerns 904 CSS and Javascrip files not minified. All of them contain the following: /cdn/shop/t/104/assets/ When I select and open the link it appears that Shopify CDN: Minification failed. Why shopify is fail…

Have you found a solution Quondy? I am seeing these es5 not supported errors on my site too. I asked Shopify support and this is what they said: 04:38 (Support Advisor): The error message “Transforming const to the configured target environment (“es5”) is not supported yet” refers to a JavaScript t…

Is there a staff member who can share why Shopify is still targeting es5 while using es6? For now we will stick with es6, because http2 is fast enough to process these types of files. Converting them to es5 makes the files much larger than they need to be for modern browsers. Since I can not reall…

I’ve created a repo that solves this issue for Dawn theme: https://github.com/mmarienko/shopify-gulp-theme using Gulp 4 and Babel (+ Tailwind). You can use it as a reference or as your starting point. I’ll be glad if you star or fork the repository.

Hi, I’m seeing this issue too. I see that no one from Shopify has officially addressed it here yet. Wondering if anyone has heard anything concrete as a resolution for this? Wouldn’t want to spend time converting the entire file for our theme only to find out there are other issues or having to trou…

Hi Jthk116 :)) my theme’s repo with Github CI/CD pipeline can help you to automatically minify and convert (ES6 → ES5) all your JS and CSS to exclude the issue: https://github.com/mmarienko/shopify-autominified-theme just follow the instructions inside. Will be glad if you star or fork the repositor…

Did it help you? The integration will change only the theme you selected. Your code in the repository will remain the same, not minified and not transpired. I think this is a cool solution that will help everyone avoid this issue until Shopify fixes it themselves.

Hello, I also have this issue. Does it impact my TTFB and my FCP ? Thanks a lot ! ** Shopify CDN: Minification failed Line 7:0 Transforming let to the configured target environment ("es5") is not supported yet Line 14:28 Transforming array spread to the configured target environment ("es5") is n…

Same issue here with “Studio” theme v12, all .js asset files untouched - so there’s definitely a divergence on Shopify’s side regarding the CDN’s target version and the ES version used by (at least some) themes officially provided/maintained by Shopify.

Hey, Does this repo also solve this issue for Debut theme? Thanks

use this one https://github.com/mmarienko/shopify-autominified-theme better

Why is automatic file minification failing on my Shopify CDN?

Technical Q&A

mmarienko February 7, 2024, 6:31pm 23

I see that your files are already minified. Did my solution help you?

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Why is automatic file minification failing on my Shopify CDN?

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