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Nice find — interesting to see browsers moving to drop XSLT support. I used XSLT once for a tiny site and it felt like magic—templating without JavaScript was freeing. But maybe it’s just niche now, and browser vendors see more cost than payoff.

Curious: have any of you used XSLT in production lately?

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Yes. It's used heavily in the publishing and standards industries that store the documents in JATS and other XML-based formats.

Because browsers only support XSLT 1.0 the transform to HTML is typically done server side to take advantage of XSLT 2.0 and 3.0 features.

It's also used by the US government:

1. https://www.govinfo.gov/bulkdata/BILLS

2. https://www.govinfo.gov/bulkdata/FR/resources

I lead a team that manage trade settlements for hedge funds; data is exported from our systems as XML and then transformed via XSLT into whatever format the prime brokers require.

All the transformed are maintained by non-developers, business analysts mainly. Because the language is so simple we don't need to give them much training, just get IntelliJ installed on their machine, show them a few samples and let them work away.

We couldn't have managed with anything else.

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