RTD's default version switcher became invisible

[kmaehashi]

After bumping pydata-sphinx-theme from v0.9.0 to v0.12.0, I noticed that RTD's version switcher disappeared.

• Version switcher is visible: https://docs.cupy.dev/en/v12.0.0b2/
• Version switcher is no longer displayed: https://docs.cupy.dev/en/v12.0.0b3/

After setting a breakpoint, I noticed that the version switcher disappears at:

pydata-sphinx-theme/src/pydata_sphinx_theme/assets/scripts/pydata-sphinx-theme.js

Lines 367 to 396 in d50d3aa

	/*******************************************************************************
	* MutationObserver to move the ReadTheDocs button
	*/
	/**
	* intercept the RTD flyout and place it in the rtd-footer-container if existing
	* if not it stays where on top of the page
	*/
	function initRTDObserver() {
	const mutatedCallback = (mutationList, observer) => {
	mutationList.forEach((mutation) => {
	// Check whether the mutation is for RTD, which will have a specific structure
	if (mutation.addedNodes.length === 0) {
	return;
	}
	if (mutation.addedNodes[0].data === undefined) {
	return;
	}
	if (mutation.addedNodes[0].data.search("Inserted RTD Footer") != -1) {
	mutation.addedNodes.forEach((node) => {
	document.getElementById("rtd-footer-container").append(node);
	});
	}
	});
	};
	const observer = new MutationObserver(mutatedCallback);
	const config = { childList: true };
	observer.observe(document.body, config);
	}

Is it possible to get the RTD's version switcher back on the docs?

[12rambau]

Duplicate of #1092

THe RDT flyout didn't really disappeared, it's is now part of the primary sidebar that is absent from many of your pages. I checked your documentation and it reappears there: https://docs.cupy.dev/en/v12.0.0b3/user_guide/index.html. We are trying to gracefully degrade this behavior for documentation without primary sidebars in #1133.

[kmaehashi]

Sorry, I searched for issues but missed that one. Glad to know the improvement is ongoing!

[drammock]

closing as duplicate