Back to top link is repeated

You could give a try to the actively maintained toc_ng → module which is a fork of Toc.js and see if your problem has been fixed.

@mably, it would be nice to stop spamming this issue queue with advertising for your fork. And also I don't understand why you fork this module instead of working (together) on the original, in a more collaborative way.

Hello @flocondetoile, I'm just trying to help here, as this module development seems stalled.

As I said already, we are willing to merge everything black to toc.js if you are interested.

But we have to move fast to get what we need for our web sites released on time.

We could work behind closed doors but we prefer to share our work with the community.

> As I said already, we are willing to merge everything black to toc.js if you are interested.

To be interested, we need to know why you fork this project (excluded the need "to move fast"), and what you have added as new feature. Looks like you fork too the toc.js library itself and embed it directly in your code. Anyway the best way to discuss this is in a dedicated issue and not by hacking any issue/report done on this project.

@flocondetoile specific issued 📌 Backporting code from the forked module toc_ng Needs review created.

Aside from the conversation above RE the fork, I should also like to say that I too am seeing multiple Back to top links.

In my case, with my theme, it's three so there might be a clue there as to what causes this.

On a fresh install on 10.3.2 I didn't succeed to reproduce this issue.

Could you try this patch ? If this don't resolve the bug (it's a blind patch), so I need context to be able to reproduce this issue.

I have applied the patch to the toc.js file but it does not seem to have solved the problem.

What I do note is that the Back to top link does appears on a fresh page refresh but then (in my case) two more get added slightly later as illustrated below...

What else can I do to help provide more context?

Drupal 10.3.2
Apache/2.4.33 (Win64) OpenSSL/1.0.2u mod_fcgid/2.3.9 PHP/8.3.1
PHP 8.3.7, memory limit: 256M
MySQL 5.7.24
PHP Caching module: OpCache

Web browser: Version 127.0.6533.89 (Official Build) (64-bit)

Which theme is used ? Which module (custom/contrib) with JS stuff is loaded on the page ?

You could also give a quick try to the brand new 3.0.x-dev version which is theoretically more compatible with dynamic pages (Ajax).

With Olivero theme, I don't reproduce it.

I guess the two (or X) back to top label are added because there is an ajax Refresh request done on the page. Or may be because of Big Pipe. If so try to disable Big Pipe to see if the rrot cause comes from here.

Ah ha!
Unistalling Big Pipe does indeed fix the issue for me.

I can also confirm that 3.0.x-dev also works with Big Pipe active ;-)

Unistalling big pipe is not a solution, indeed. But we knows that the duplicate links are because of the multiple ajax request done on the page by Big Pipe.

Confirmed as fixed in 3.0.x-dev.

Automatically closed - issue fixed for 2 weeks with no activity.