Instant loading makes print dialog autoclose

When I add navigation.instant theme option CTRL + P dialog closes on any page. The problem is gone when I remove that option.

To reproduce

1. Go to https://majkinetor.github.io/mm-docs-template/
2. Hit CTRL + P wait 2 seconds
3. Print dialog should close by itself

Sometimes CTRL + P works the first time but just hitting F5 or ctrl + F5 and then doing it again can change the outcome.

• I’ve read the [contribution guidelines][1] and agree with them

I’ve found a bug and checked that …

• … the problem doesn’t occur with the default MkDocs template
• … the problem is not in any of my customizations (CSS, JS, template)
• … the documentation does not mention anything about my problem
• … there are no open or closed issues that are related to my problem

Package versions

• Python: 3.6
• MkDocs: 1.1.2
• Material: 6.2.6

• All other: https://github.com/majkinetor/mm-docs/blob/master/requirements.txt

Project configuration

• https://github.com/majkinetor/mm-docs-template/blob/master/source/mkdocs.yml

System information

• Windows 10 10.0.19042 N/A Build 19042
• Chrome 88.0.4324.104 (sometimes work, mostly doesn’t)
• Edge 88.0.705.56 (never works)

[majkinetor]

I can confirm that master works.

[majkinetor]

No problem. Thanks.