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Fix RTD language switcher redirecting to nonexistent /en/4.x/ branch

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If we were redirected to `/en/4.x/` as a result of the RTD language selector,
redirect to `/en/stable/` instead, as English does not have a `4.x` branch.

For maintenance reasons, non-English languages have a single `4.x` branch
that is the counterpart of `4.3`, `4.4`, `4.5` and so on.).
This commit is contained in:
Hugo Locurcio
2025-10-06 22:46:45 +02:00
committed by Lukas Tenbrink
parent 0535cd5443
commit 16e84a8d76
1 changed files with 9 additions and 0 deletions
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404.rst
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@@ -24,6 +24,15 @@ Page not found
</p>
<script>
// If we were redirected to `/en/4.x/` as a result of the RTD language selector,
// redirect to `/en/stable/` instead, as English does not have a `4.x` branch.
// (For maintenance reasons, non-English languages have a single `4.x` branch
// that is the counterpart of `4.3`, `4.4`, `4.5`, and so on.)
if (window.location.pathname.includes('/en/4.x/')) {
const newUrl = window.location.pathname.replace('/en/4.x/', '/en/stable/');
window.location.replace(newUrl);
}
// Check for redirects if on a currently invalid page.
// This is done in JavaScript, as we exceed Read the Docs' limit for the amount of redirects configurable.
// When testing this feature on a local web server, replace the URL below with just `/_static/redirects.csv`.