Instant navigation doesn't respect #hash

[fottsia]

Contribution guidelines

• I've read the contribution guidelines and wholeheartedly agree

I've found a bug and checked that ...

• ... the problem doesn't occur with the mkdocs or readthedocs themes
• ... the problem persists when all overrides are removed, i.e. custom_dir, extra_javascript and extra_css
• ... the documentation does not mention anything about my problem
• ... there are no open or closed issues that are related to my problem

Description

When navigation.instant is set in mkdocs.yml, if a page1 links to page2#hash, then page2 is indeed loaded, but the #hash part is ignored.

Expected behaviour

We should navigate to the #hash header/anchor.

Actual behaviour

We are directed to the start of page2.

Steps to reproduce

Create a page1 that links to page2#anchor.

Package versions

• Python: 3.9.9
• MkDocs: 1.2.3
• Material: 8.0.1

Configuration

theme:
  features:
    - navigation.instant

System information

• Operating system: Ubuntu 22.04
• Browser: Firefox

[squidfunk]

Could you please check if the issue also appears with 7.3.6?

[kgidarakos]

This issue also affects me.
Thanks in advance

[squidfunk]

@kgidarakos in the future, please just use the voting mechanisms on the OP and/or subscribe to the issue.

[fottsia]

In 7.3.6 it's a lot better: the browser window shows page2#anchor at its middle
In 8.0.1: the browser window shows page2 at its top (i.e. the start of page)

The desired outcome should be: the browser window to show page2#anchor at its top.

I.e. 7.3.6 is a whole lot better than 8.0.1, and it's probably acceptable behavior, but maybe not ideal.

[squidfunk]

Thanks. There were some changes that might impact instant loading. If you depend on it (e.g. when you have a large search index that you only want to initialize once), the recommendation is to use 7.3.6 for now.

[squidfunk]

Fixed in ebcd000. It was a regression introduced in a refactoring done in 8.0.0.

[squidfunk]

The fix was just released as part of 8.0.4.