[v3] Web Server tag fails on Windows

[Bare7a]

Wails version family

v3

Exact Wails version

v3.0.0-beta.3

Operating System

Windows

Description

Starting a Wails v3 web project on Windows fails during compilation with multiple webview_window_windows_nonclient.go:38:10: undefined: windowsWebviewWindow logs

The same project builds successfully on macOS and Linux using identical dependencies.

To Reproduce

wails3 init -n app
cd ./app
wails3 build
go run -tags server main.go

Expected behaviour

The project should compile successfully on Windows the same way it does on macOS and Linux.

Screenshots

No response

Attempted Fixes

I was able to fix the problem locally by modifying the v3/pkg/application/webview_window_windows_nonclient.go file from

//go:build windows

to

//go:build windows && !server

System Details

Wails v3.0.0-beta.3 › Wails Doctor
                                                                                                                                                                                                  
# System
        
┌─────────────────────────────────────────────────────────────────────┐
| Name              | Windows 10 Pro                                  |
| Version           | 2009 (Build: 26200)                             |
| ID                | 25H2                                            |
| Branding          | Windows 11 Pro                                  |
| Platform          | windows                                         |
| Architecture      | amd64                                           |
| Go WebView2Loader | true                                            |
| WebView2 Version  | 150.0.4078.105                                  |
| CPU               | AMD Ryzen 7 5800H with Radeon Graphics          |
| GPU               | NVIDIA GeForce RTX 3060 Laptop GPU (NVIDIA)     |
| Memory            | 32GB                                            |
└─────────────────────────────────────────────────────────────────────┘
                   
# Build Environment
                   
┌──────────────────────────────────────────────────────────────────────┐
| Wails CLI      | v3.0.0-beta.3                                       |
| Go Version     | go1.26.5                                            |
| -buildmode     | exe                                                 |
| -compiler      | gc                                                  |
| CGO_CFLAGS     |                                                     |
| CGO_CPPFLAGS   |                                                     |
| CGO_CXXFLAGS   |                                                     |
| CGO_ENABLED    | 1                                                   |
| CGO_LDFLAGS    |                                                     |
| DefaultGODEBUG | cryptocustomrand=1,tlssecpmlkem=0,urlstrictcolons=0 |
| GOAMD64        | v1                                                  |
| GOARCH         | amd64                                               |
| GOOS           | windows                                             |
└──────────────────────────────────────────────────────────────────────┘
              
# Dependencies
              
┌────────────────────────────────────────────────────────────────────────────────────────────────────────┐
| *Android NDK               | Not found. Install with: sdkmanager 'ndk;26.3.11579264'                   |
| *Android SDK               | C:\Users\bare7\AppData\Local\Android\Sdk                                  |
| *Android platform-tools    | Not found. Install with: sdkmanager 'platform-tools'                      |
| *Java (Android)            | Not found. Install a JDK (e.g. brew install openjdk@21) or set JAVA_HOME. |
| MSIX Packaging Tool        | Not Installed                                                             |
| MakeAppx.exe (Windows SDK) | Not Installed                                                             |
| NSIS                       | v3.12                                                                     |
| SignTool.exe (Windows SDK) | Not Installed                                                             |
| npm                        | 11.13.0                                                                   |
| docker                     | *Docker version 29.6.2, build dfc4efb (cross-compilation ready)           |
|                                                                                                        |
└─────────────────────────────────────── * - Optional Dependency ────────────────────────────────────────┘
         
# Signing
         
┌────────────────────────────────────────┐
| macOS Signing   | Not configured       |
| Windows Signing | Not configured       |
| Linux Signing   | Not configured (GPG) |
└────────────────────────────────────────┘
                     
# Checking for issues
                     
 SUCCESS  No issues found
           
# Diagnosis
           
 SUCCESS  Your system is ready for Wails development!

Additional context

No response

[coderabbitai]

⚠️ Possible Duplicate Issue(s)

• [v3] Web Server tag fails on Windows #5680

🔗 Related PRs

#4492 - [v3] Fix SetBackgroundColour on Windows [merged]
#4645 - [v3] Fix Windows build error with go-webview2 v1.0.22 [merged]
#5684 - fix(v3/windows): web server (server tag) build fails on Windows (#5680) [merged]
#5708 - feat(v3,macos): NSWindow tabbing mode configuration [merged]
#5790 - fix(v3): guard nil AllowDarkModeForWindow to avoid panic on Windows Server 2019 [open]

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