Unicode/XML Leningrad Codex: XSLT Apocalypse arrives soon.
Posted: Sun Jun 21, 2026 6:11 am
Major browser manufacturers will remove client-side XSLT transformation from their browsers sometime in the coming year. The Google Chrome browser is slated to remove XSLT from versions after 17 November 2026. Microsoft Edge and Firefox browsers will follow. XSLT transformations are an essential component of the previous tanach.us site; when XSL transformations are removed the existing site will be clearly "broken"; the table of biblical books will not be visible on entry to the site.
When this occurs, please change your tanach.us site URL to
<https://tanach.us/Tanach.html>
that is, change the .xml extension to an .html extension. The site will operate normally at this URL with the exception of items in the Supplements directory.
Items in the Supplements directory will become available if you install a free "XSLT Polyfill" extension. Usually this extension is offered by the browser vendor as part of a warning notice when an XSLT-based page is referenced. The Supplements "Search" feature will NOT operate even with the "XSLT Polyfill" extension; it's a casualty of the XSLT apocalypse.
You can switch to the new URL at any time; please help clear up the consequential software problems by contacting me at the e-mail address given on the Publisher page, <https://tanach.us/Pages/Publisher.html>, not through this forum.
Chris Kimball
West Redding, CT
USA
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Google Chrome (for MacOS) 149.0.7827.156 (Official build)(arm64) provides tools to explore the future. Type chrome://flags/#xslt to view a page to enable/disable XSLT transformations. Accept its XSL Polyfill when offered.
Mozilla Firefox (for MacOS) 152.0.1 (arm64) provides control of XSLT transformations, but no polyfill. Type about:config, then set dom.xslt.enabled as desired.
Microsoft Edge (for MacOS) now obscures user XSLT transformation control.
When this occurs, please change your tanach.us site URL to
<https://tanach.us/Tanach.html>
that is, change the .xml extension to an .html extension. The site will operate normally at this URL with the exception of items in the Supplements directory.
Items in the Supplements directory will become available if you install a free "XSLT Polyfill" extension. Usually this extension is offered by the browser vendor as part of a warning notice when an XSLT-based page is referenced. The Supplements "Search" feature will NOT operate even with the "XSLT Polyfill" extension; it's a casualty of the XSLT apocalypse.
You can switch to the new URL at any time; please help clear up the consequential software problems by contacting me at the e-mail address given on the Publisher page, <https://tanach.us/Pages/Publisher.html>, not through this forum.
Chris Kimball
West Redding, CT
USA
----
Google Chrome (for MacOS) 149.0.7827.156 (Official build)(arm64) provides tools to explore the future. Type chrome://flags/#xslt to view a page to enable/disable XSLT transformations. Accept its XSL Polyfill when offered.
Mozilla Firefox (for MacOS) 152.0.1 (arm64) provides control of XSLT transformations, but no polyfill. Type about:config, then set dom.xslt.enabled as desired.
Microsoft Edge (for MacOS) now obscures user XSLT transformation control.