Placeholders not always available for application customizers

[estruyf]

Category

• Question
• Typo
• Bug
• Additional article idea

Expected or Desired Behavior

When creating an application customizer that shows a header or footer, the expected behavior should be that it is loaded on every modern page.

Observed Behavior

When navigating to document or pages libraries, it occurs that the top and bottom placeholders are not available. When page if completely refreshed, they appear again.

At the end of the GIF you see 1, 2 printed. This is the output of: this.context.placeholderProvider.placeholderNames.join(','), but this does not occur on first page navigation.

Steps to Reproduce

I tried this by following the guide: https://docs.microsoft.com/en-us/sharepoint/dev/spfx/extensions/get-started/using-page-placeholder-with-extensions

[VesaJuvonen]

Potential duplicate of #1254 and #1263. We'll investigate on engineering side.

[VelinGeorgiev]

I experience similar behavior. Not just the app customizer, but also any custom webparts are not loaded along with the customizers. Adding reference to my issue here: #1309

[ahackettms]

@estruyf @VelinGeorgiev : Are you still experiencing this issue? Could you please help check again?
We had some fixes recently which may have fixed this.
Thanks

[ahackettms]

We have fixed this issue. Please let us know if this is still an issue. Closing

[VelinGeorgiev]

Thanks @ahackettms , I will test and let you know if any issues.

[VelinGeorgiev]

@ahackettms , I can confirm that that one can be closed. However you still have problems with the customizer and page transitioning. Please have a look at the new issue: #1464.

[msft-github-bot]

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