Posts

Chrome 158 drops native XSLT — XSLTProcessor and xml-stylesheet stop working. Who is actually affected, honest pros and cons of the WASM polyfill vs server-side migration paths, and how to test your stylesheets outside the browser today.

FreeFormatter.com shut down in 2026. Here is what happened, a feature-by-feature mapping of its XSL Transformer to XSLT Playground, and a runnable example — including real Saxon XSLT 2.0/3.0, which FreeFormatter never had.

SWIFT retired MT940/942/101 in November 2025, and ISO 20022 is XML — which is why payments teams are writing XSLT in 2026. A runnable camt.053-to-CSV example in XSLT 2.0, plus trace-based debugging tips.

Peppol and EN 16931 validation is Schematron compiled to XSLT 2.0 stylesheets that emit SVRL. How the multi-layer pipeline works, how to run a compiled rule against a UBL invoice in the browser, and where an online playground honestly fits.

A practical triage guide to XSLT and Saxon errors — XPST0017, XPTY0004, XPDY0002, 'Content is not allowed in prolog' and more: what each means and the fastest fix.

An honest comparison of XSLT and MuleSoft DataWeave for XML (and JSON) transformations: portability, tooling, learning curve, performance — and when each one wins.

An honest comparison of the free online XSLT testers that actually support XSLT 3.0 — Saxon HE vs Saxon-JS, multiple inputs, validation and trace. Which to pick and why.

How to use xsl:result-document in XSLT 2.0 and 3.0 to produce multiple output files from a single stylesheet. Covers split by category, multi-format output, serialization control, and streaming.

Free XSL online tester and editor. Run XSL transformations, test XSLT stylesheets and validate XSL-FO output without installing anything.

How to group XML nodes in XSLT 2.0 using for-each-group. Covers group-by, group-adjacent, group-starting-with, and group-ending-with with examples.