refactor: move Linux custom protocol headers support behind feature flag

.changes/linux-headers.md

@@ -0,0 +1,5 @@
+---
+"tauri": patch
+---
+
+Moved the custom protocol headers support on Linux behind the `linux-protocol-headers` Cargo feature to enhance compatibility with older Linux distributions.

.github/workflows/lint-fmt-core.yml

@@ -50,7 +50,7 @@ jobs:
         clippy:
           - { args: '', key: 'empty' }
           - {
-              args: '--features compression,wry,isolation,custom-protocol,api-all,cli,updater,system-tray,windows7-compat,http-multipart',
+              args: '--features compression,wry,linux-protocol-headers,isolation,custom-protocol,api-all,cli,updater,system-tray,windows7-compat,http-multipart',
               key: 'all'
             }
           - { args: '--features custom-protocol', key: 'custom-protocol' }

.github/workflows/test-core.yml

@@ -56,7 +56,7 @@ jobs:
               key: api-all
             }
           - {
-              args: --features compression,wry,isolation,custom-protocol,api-all,cli,updater,system-tray,windows7-compat,http-multipart,
+              args: --features compression,wry,linux-protocol-headers,isolation,custom-protocol,api-all,cli,updater,system-tray,windows7-compat,http-multipart,
               key: all
             }
 

core/tauri-runtime-wry/Cargo.toml

@@ -13,7 +13,7 @@ exclude = [ "CHANGELOG.md", "/target" ]
 readme = "README.md"
 
 [dependencies]
-wry = { version = "0.22", default-features = false, features = [ "file-drop", "protocol" ] }
+wry = { version = "0.22.4", default-features = false, features = [ "file-drop", "protocol" ] }
 tauri-runtime = { version = "0.12.0", path = "../tauri-runtime" }
 tauri-utils = { version = "1.2.0", path = "../tauri-utils" }
 uuid = { version = "1", features = [ "v4" ] }
@@ -47,3 +47,4 @@ macos-private-api = [
 objc-exception = [ "wry/objc-exception" ]
 global-shortcut = [ "tauri-runtime/global-shortcut" ]
 clipboard = [ "tauri-runtime/clipboard" ]
+linux-headers = ["wry/linux-headers"]

core/tauri/Cargo.toml

@@ -129,6 +129,7 @@ default = [ "wry", "compression", "objc-exception" ]
 compression = [ "tauri-macros/compression", "tauri-utils/compression" ]
 wry = [ "tauri-runtime-wry" ]
 objc-exception = [ "tauri-runtime-wry/objc-exception" ]
+linux-protocol-headers = [ "tauri-runtime-wry/linux-headers" ]
 isolation = [ "tauri-utils/isolation", "tauri-macros/isolation" ]
 custom-protocol = [ "tauri-macros/custom-protocol" ]
 updater = [

core/tauri/src/lib.rs

@@ -13,6 +13,7 @@
 //! - **wry** *(enabled by default)*: Enables the [wry](https://github.com/tauri-apps/wry) runtime. Only disable it if you want a custom runtime.
 //! - **dox**: Internal feature to generate Rust documentation without linking on Linux.
 //! - **objc-exception**: Wrap each msg_send! in a @try/@catch and panics if an exception is caught, preventing Objective-C from unwinding into Rust.
+//! - **linux-protocol-headers**: Enables headers support for custom protocol requests on Linux. Requires webkit2gtk v2.36 or above.
 //! - **isolation**: Enables the isolation pattern. Enabled by default if the `tauri > pattern > use` config option is set to `isolation` on the `tauri.conf.json` file.
 //! - **custom-protocol**: Feature managed by the Tauri CLI. When enabled, Tauri assumes a production environment instead of a development one.
 //! - **updater**: Enables the application auto updater. Enabled by default if the `updater` config is defined on the `tauri.conf.json` file.