Broken icon layout in top nav bar

[dstansby]

After #103 (I assume) the layout of icons in the top nav bar is broken for me:

They should be on the right.

This appears to be because bootstrap.css isn't loading. I get these errors in my web browser console:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015. (Reason: CORS request did not succeed). Status code: (null).

None of the “sha512” hashes in the integrity attribute match the content of the subresource at “https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015”. The computed hash is “z4PhNX7vuL3xVChQ1m2AB9Yg5AULVxXcg/SpIdNs6c5H0NE8XYXysP+DGNKHfuwvY7kxvUdBeoGlODJ6+SfaPg==”. [matplotlib.org](https://matplotlib.org/)
Uncaught TypeError: can't access property "addEventListener", document.getElementById(...) is null
    <anonymous> https://matplotlib.org/_static/scripts/bootstrap.js?digest=8878045cc6db502f8baf:2
    mo https://matplotlib.org/_static/scripts/bootstrap.js?digest=8878045cc6db502f8baf:2
    <anonymous> https://matplotlib.org/_static/scripts/bootstrap.js?digest=8878045cc6db502f8baf:2
    <anonymous> https://matplotlib.org/_static/scripts/bootstrap.js?digest=8878045cc6db502f8baf:2
[bootstrap.js:2:81122](https://matplotlib.org/_static/scripts/bootstrap.js?digest=8878045cc6db502f8baf)
Uncaught TypeError: can't access property "addEventListener", e is null
    <anonymous> https://matplotlib.org/_static/scripts/pydata-sphinx-theme.js?digest=8878045cc6db502f8baf:1
    <anonymous> https://matplotlib.org/_static/scripts/pydata-sphinx-theme.js?digest=8878045cc6db502f8baf:1
    e https://matplotlib.org/_static/scripts/pydata-sphinx-theme.js?digest=8878045cc6db502f8baf:1
    <anonymous> https://matplotlib.org/_static/scripts/pydata-sphinx-theme.js?digest=8878045cc6db502f8baf:1
    <anonymous> https://matplotlib.org/_static/scripts/pydata-sphinx-theme.js?digest=8878045cc6db502f8baf:1

[dstansby]

I think pydata/pydata-sphinx-theme#2267 is the upstream issue for this.

[QuLogic]

So I don't think the back-to-top button had anything to do with the layout issues, cf #109. That seems to have been a server misconfiguration, but it should be fixed now. It would still be nice to fix the exception when the button is disabled, but it may still be okay to re-disable it now.