Maui Blazor image cache is not working

[romanov]

Description

Hi everyone! When switching between pages in the app, images aren't loaded from the cache but are reloaded from the server (local folder). Visually, there's a brief flash, followed by the image loading when the page is reloaded. In other words, the image cache isn't working.

Manifest (or serviceworker) cache is not helping.

Steps to Reproduce

1. Create MAUI Blazor App
2. Add any static (wwwroot) images to any other page
3. Navigate to that page
4. Navigate back to the homepage
5. Navigate to that page again and u still see blinking

Version with bug

6.0.400 (current)

Last version that worked well

Unknown/Other

Affected platforms

I was not able test on other platforms

Affected platform versions

Android (Emulator and real device)

Did you find any workaround?

No

Relevant log output

No response

[javiercn]

@romanov thanks for contacting us.

Does the same webview instance survive across navigations?

Hi @romanov. We have added the "s/needs-info" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[romanov]

@romanov thanks for contacting us.

Does the same webview instance survive across navigations?

How to check it? It's default MAUI Blazor template with default BlazorWebView

[javiercn]

@romanov put a static counter variable in your blazor app, increment it every time index is rendered and display the results. That's a good proxy to determine if the blazor webview component is being recreated

Hi @romanov. We have added the "s/needs-info" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[romanov]

What is the best method to put the counter's incementation?

protected override async Task OnInitializedAsync() or OnInitialized?

Is it right for a blazor page? Or they call everytime on navigation?

I've just tested a blank new MAUI Blazor template and added image to the second view. Same reload.