Elasticsearch: [docs] Side menu (TOC) not rendering on Firefox 60

[ergo]

Hello,
Documentation does not render side menu anymore.
Is this something that can be added back? Currently this makes browsing documentation very tedious task.

[dadoonet]

It does for me... May be clean your browser cache?

[ergo]

Hm, seems like it is a JS bug.

ReferenceError: MktoForms2 is not defined - happens on Firefox 60, and menu is gone.
On Chrome it indeed renders fine.

[dadoonet]

Thank you! I'm going to ping people internally.

[elasticmachine]

Pinging @elastic/es-docs

[sylvie777]

I have Firefox 60.0.1 and the menu shows up for me:

[debadair]

I can't reproduce, either. Works fine on FF 60.0.1 on the Mac & also tested on Windows via Browserstack.com. The JS error seems odd...but the most common reason the TOC doesn't load correctly is that some ad/privacy blocker is engaged.

[Hashiko]

I could reproduce the bug. It would seem that blocking the tracker "Marketo" on Ghostery (or similar) generate the error and make the display of the right menu impossible.

[ergo]

Really, is that even legal with GDPR right now?

[lcawl]

Related issue?: https://github.com/elastic/docs/issues/367

[sylvie777]

@mariusz-kowalski Sorry, didn't mean to delete your comment:

This is issue with "Tracking protection" when it is enabled in Firefox (by default in my case) side menu disappears. When I disable tracking protection for elastic.co menu is back.

[sylvie777]

@ergo @Hashiko @dadoonet Thanks for your patience with this! A fix has been applied. Please let me know if the issue still persists for you.

[ergo]

Yup, thanks @sylvie777 - the menu now renders onFirefox again.

[dadoonet]

Awesome! Closing then. Thanks all for fixing and confirming the fix!