x/website: Table of contents in the language specification missing

[pcostanza]

Since recently, I don't see the table of contents for the language specification at https://golang.org/ref/spec anymore. This is for Safari 15 on macOS. (I see this in Catalina, Big Sur, and Monterey.) On Chrome, the table of contents shows up fine.

It would be great if this could be fixed.

[robpike]

Safari 15.0 shows it fine for me on my iMac running 11.6.

[pcostanza]

My apologies, I should have checked more carefully. I'm certain I have seen this on Big Sur before, but I cannot verify this anymore. However, I don't see this problem anymore on Monterey, so maybe I'm wrong. But I have also verified this on Catalina just now, and there the problem still exists, I don't see a table of contents there.

[seankhliao]

The table of contents is generated client side with js, are there any errors when it doesn't render?

[pcostanza]

I see the following messages in the JavaScript console:

[Info] Content blocker prevented frame displaying https://golang.org/ref/spec from loading a resource from https://ssl.google-analytics.com/ga.js (spec, line 6944)
[Error] TypeError: null is not an object (evaluating 'menuButtonEl.addEventListener')
(anonymous function) (godocs.js:18)
Global Code (godocs.js:381)

[seankhliao]

It targets this line, which certainly appears to exist https://github.com/golang/website/blob/master/_content/site.tmpl#L45 (and works everywhere else). Given that you said it was no longer reproducible on your original machine, could it just be safari's aggressive local caching? (the class name changed a month ago)

[pcostanza]

I have checked on Catalina again, and emptied caches through the hidden Develop menu in Safari, and now the table of contents indeed show up. I wasn't aware that Safari is so aggressive at caching, I always thought that a reload should do the trick. Thanks a lot for the help, very much appreciated!!!

[seankhliao]

Closing as this appears to be a browser issue