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Chrome to Deprecate and Remove XSLT Support by Late 2026

By

justin-reeves

6mo ago· 13 min readenNews

Summary

Google Chrome plans to deprecate and remove XSLT (Extensible Stylesheet Language Transformations) from the browser by late 2026, starting with version 158. The Chromium project has officially deprecated XSLT, including the XSLTProcessor JavaScript API and XSLT processing instruction. Firefox and WebKit projects have also indicated plans to remove XSLT from their browser engines. The article provides guidance for developers on migrating their code before the removal, explaining the security rationale and offering migration strategies.

Key quotes

· 4 pulled
Chrome intends to deprecate and remove XSLT from the browser.
Chromium has officially deprecated XSLT, including the XSLTProcessor JavaScript API and the XSLT processing instruction.
We intend to remove support from version 158 (November 17, 2026).
The Firefox and WebKit projects have also indicated plans to remove XSLT from their browser engines.
Snippet from the RSS feed
Prepare for Chrome deprecating and removing XSLT from the browser.

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