Blazor WebAssembly crashes on mobile devices with low RAM

[martinmogusu]

Describe the bug

Blazor WebAssembly apps crash on devices with low RAM

To Reproduce

I have created a minimal example at https://github.com/martinmogusu/CrashTest
The code is from the default WebAssembly template dotnet new blazorwasm

I have also hosted the site on Azure Static Web Apps here: https://icy-sky-0892af903.azurestaticapps.net/

If you load the site on a device with 1GB RAM, the app crashes. On the UI you see "An unhandled error has occurred"
On the browser console logs you find this error:

Uncaught (in promise) TypeError: Failed to execute 'arrayBuffer' on 'Response': body stream already read

TypeError: Failed to execute 'arrayBuffer' on 'Response': body stream already read
window.Module.s.printErr @ blazor.webassembly.js:1

I was able to view the console logs by using Kiwi Browser for android, which has devtools.
The same site works okay on devices with higher RAM.

Further technical details

• ASP.NET Core version: 6.0
• The IDE (VS / VS Code/ VS4Mac) you're running on, and its version: Visual studio 2022
• Include the output of dotnet --info:

dotnet --info Output

.NET SDK (reflecting any global.json):
 Version:   6.0.100
 Commit:    9e8b04bbff

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.19043
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\6.0.100\

Host (useful for support):
  Version: 6.0.0
  Commit:  4822e3c3aa

.NET SDKs installed:
  3.1.301 [C:\Program Files\dotnet\sdk]
  3.1.415 [C:\Program Files\dotnet\sdk]
  5.0.403 [C:\Program Files\dotnet\sdk]
  6.0.100-rc.1.21463.6 [C:\Program Files\dotnet\sdk]
  6.0.100-rc.2.21505.57 [C:\Program Files\dotnet\sdk]
  6.0.100 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.10 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0-rc.1.21452.15 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0-rc.2.21480.10 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.10 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0-rc.1.21451.13 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0-rc.2.21480.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.10 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0-rc.1.21451.3 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0-rc.2.21501.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

To install additional .NET runtimes or SDKs:
  https://aka.ms/dotnet-download

[TanayParikh]

Were you seeing a crash in Chrome as well? Supported browsers are listed here: https://docs.microsoft.com/en-us/aspnet/core/blazor/supported-platforms?view=aspnetcore-6.0. Note, Kiwi isn't on the list of supported browsers.

[martinmogusu]

Yes, I'm seeing the crash on Chrome on Android as well. I'm using the latest version of chrome (95.0.4638.74)

[frieddumplings]

Also seeing it in chrome beta/android 97.0.4692.20.

The website just gives the "An unhandled error has occured. Reload" message - (clicking on reload for me dosen't actually do anything).

.Net Core 6.0 empty/default client/server project (nothing changed).

Using a VPS that has 2GB of ram to host my page (Just the default client/server template) . It seems to be okay when navigating normally using buttons/clicking on links, but if I modify the url through the search bar (by typing) I get this error quite frequently. Phone is a Galaxy S9 SM-G960F running android 10.

I've tested on an older version of chrome as well (80.0.3987.99) and its harder(?) or almost impossible to reproduce the error.

edit (this older version was chrome stable)
(Also forgot to mention, blazor project. If that makes any difference).

(Edit again: Added a list of server processes) CPU** and ram usage hovers around 30~50%. Haven't really monitored when changing pages but shouldnt(?) be an issue, nothing fancy installed. Just SQLServer and a bunch of default stuff)

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[mkArtakMSFT]

@lewing FYI

[frieddumplings]

Possibly related, this was also in the debug window when the above errors showed up in the console:
https://blog.chromium.org/2021/05/update-on-user-agent-string-reduction.html
https://blog.chromium.org/2021/09/user-agent-reduction-origin-trial-and-dates.html

Tagging subscribers to this area:
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Describe the bug

Blazor WebAssembly apps crash on devices with low RAM

To Reproduce

I have created a minimal example at https://github.com/martinmogusu/CrashTest
The code is from the default WebAssembly template dotnet new blazorwasm

I have also hosted the site on Azure Static Web Apps here: https://icy-sky-0892af903.azurestaticapps.net/

If you load the site on a device with 1GB RAM, the app crashes. On the UI you see "An unhandled error has occurred"
On the browser console logs you find this error:

Uncaught (in promise) TypeError: Failed to execute 'arrayBuffer' on 'Response': body stream already read

TypeError: Failed to execute 'arrayBuffer' on 'Response': body stream already read
window.Module.s.printErr @ blazor.webassembly.js:1

I was able to view the console logs by using Kiwi Browser for android, which has devtools.
The same site works okay on devices with higher RAM.

Further technical details

• ASP.NET Core version: 6.0
• The IDE (VS / VS Code/ VS4Mac) you're running on, and its version: Visual studio 2022
• Include the output of dotnet --info:

dotnet --info Output

.NET SDK (reflecting any global.json):
 Version:   6.0.100
 Commit:    9e8b04bbff

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.19043
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\6.0.100\

Host (useful for support):
  Version: 6.0.0
  Commit:  4822e3c3aa

.NET SDKs installed:
  3.1.301 [C:\Program Files\dotnet\sdk]
  3.1.415 [C:\Program Files\dotnet\sdk]
  5.0.403 [C:\Program Files\dotnet\sdk]
  6.0.100-rc.1.21463.6 [C:\Program Files\dotnet\sdk]
  6.0.100-rc.2.21505.57 [C:\Program Files\dotnet\sdk]
  6.0.100 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.10 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0-rc.1.21452.15 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0-rc.2.21480.10 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.10 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0-rc.1.21451.13 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0-rc.2.21480.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.10 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0-rc.1.21451.3 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0-rc.2.21501.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

To install additional .NET runtimes or SDKs:
  https://aka.ms/dotnet-download

Author:	martinmogusu
Assignees:	-
Labels:	untriaged, area-VM-meta-mono
Milestone:	-

Tagging subscribers to 'arch-wasm': @lewing
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Describe the bug

Blazor WebAssembly apps crash on devices with low RAM

To Reproduce

I have created a minimal example at https://github.com/martinmogusu/CrashTest
The code is from the default WebAssembly template dotnet new blazorwasm

I have also hosted the site on Azure Static Web Apps here: https://icy-sky-0892af903.azurestaticapps.net/

If you load the site on a device with 1GB RAM, the app crashes. On the UI you see "An unhandled error has occurred"
On the browser console logs you find this error:

Uncaught (in promise) TypeError: Failed to execute 'arrayBuffer' on 'Response': body stream already read

TypeError: Failed to execute 'arrayBuffer' on 'Response': body stream already read
window.Module.s.printErr @ blazor.webassembly.js:1

I was able to view the console logs by using Kiwi Browser for android, which has devtools.
The same site works okay on devices with higher RAM.

Further technical details

• ASP.NET Core version: 6.0
• The IDE (VS / VS Code/ VS4Mac) you're running on, and its version: Visual studio 2022
• Include the output of dotnet --info:

dotnet --info Output

.NET SDK (reflecting any global.json):
 Version:   6.0.100
 Commit:    9e8b04bbff

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.19043
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\6.0.100\

Host (useful for support):
  Version: 6.0.0
  Commit:  4822e3c3aa

.NET SDKs installed:
  3.1.301 [C:\Program Files\dotnet\sdk]
  3.1.415 [C:\Program Files\dotnet\sdk]
  5.0.403 [C:\Program Files\dotnet\sdk]
  6.0.100-rc.1.21463.6 [C:\Program Files\dotnet\sdk]
  6.0.100-rc.2.21505.57 [C:\Program Files\dotnet\sdk]
  6.0.100 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.10 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0-rc.1.21452.15 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0-rc.2.21480.10 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.10 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0-rc.1.21451.13 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0-rc.2.21480.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.10 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0-rc.1.21451.3 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0-rc.2.21501.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

To install additional .NET runtimes or SDKs:
  https://aka.ms/dotnet-download

Author:	martinmogusu
Assignees:	-
Labels:	arch-wasm, untriaged, area-VM-meta-mono
Milestone:	-