feat(web): re-enable web exports

.github/workflows/main.yml

@@ -173,16 +173,20 @@ jobs:
             addons/godot_xterm/native/bin/*.xcframework
             addons/godot_xterm/native/bin/*.dll
 
-  html5-export:
-    name: "HTML5 Export"
-    needs: [check-archive, check-pre-commit]
+  web-export:
+    name: "Web Export"
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
+      - id: install-chrome
+        uses: browser-actions/setup-chrome@v1
+        with:
+          chrome-version: 121
       - name: Setup Godot
         uses: lihop/setup-godot@v2
         with:
           version: "4.2.1-stable"
+          export-templates: true
       - name: Import assets
         run: godot --editor --headless --quit-after 100 || true
       - name: Wait for build
@@ -196,41 +200,28 @@ jobs:
         with:
           path: addons/godot_xterm/native/bin
           merge-multiple: true
-      # Some remaining steps temporarily disabled.
-      - name: Export HTML5
-        if: false
+      - name: Export for web
         uses: nick-fields/retry@v3
         with:
-          command: godot --no-window --export HTML5
+          command: godot --no-window --export-release Web
           retry_on: error
           timeout_minutes: 5
           max_attempts: 6
       - name: NPM cache
         uses: c-hive/gha-npm-cache@v1
         with:
-          directory: test/html5
-      - name: Smoke test HTML5 export
-        if: false
+          directory: test/web
+      - name: Smoke test Web export
         shell: bash
-        working-directory: test/html5
+        working-directory: test/web
         run: |
+          export GODOT_XTERM_CHROME_PATH=${{ steps.install-chrome.outputs.chrome-path }}
           npm ci
-          npx serve ../../docs/demo -p 3000 &
-          npx cypress run
-      - name: Upload cypress artifacts (on failure)
-        uses: actions/upload-artifact@v4
-        if: false
-        #if: ${{ failure() }}
-        with:
-          name: cypress-artifacts
-          path: |-
-            test/html5/cypress/screenshots
-            test/html5/cypress/videos
+          npm test
       - name: Upload export
-        if: false
         uses: actions/upload-artifact@v4
         with:
-          name: html5-demo
+          name: web-demo
           path: docs/demo
 
   test:
@@ -316,7 +307,7 @@ jobs:
   merge-artifacts:
     name: Merge Artifacts
     runs-on: ubuntu-latest
-    needs: [build-linux, build-other-platforms, test, html5-export]
+    needs: [build-linux, build-other-platforms, test, web-export]
     strategy:
       matrix:
         target: [release, debug]

.gitignore

@@ -7,7 +7,7 @@ export.cfg
 export/
 export_presets.cfg
 
-# Dummy HTML5 export presets file for continuous integration
+# Dummy Web export presets file for continuous integration
 !.github/dist/export_presets.cfg
 
 # Mono-specific ignores

Justfile

@@ -8,6 +8,11 @@ godot := `echo "${GODOT:-godot} --rendering-driver ${RENDERING_DRIVER:-vulkan}"`
 build:
     cd addons/godot_xterm/native && scons debug_symbols=yes
 
+build-javascript:
+    UID_GID="$(id -u):$(id -g)" docker-compose -f addons/godot_xterm/native/docker-compose.yml run --rm javascript
+
+build-all: build build-javascript
+
 install:
     {{godot}} --headless -s plug.gd install
 

addons/godot_xterm/native/docker-compose.yml

@@ -11,10 +11,7 @@ services:
       - /bin/bash
       - -c
       - |
-        cd /src/thirdparty/godot-cpp
-        scons platform=javascript target=$${TARGET:-debug} -j$$(nproc)
-        cd /src
-        scons platform=javascript target=$${TARGET:-debug} -j$$(nproc)
+        scons platform=web target=$${TARGET:-template_debug} -j$$(nproc)
   libuv-linux:
     user: ${UID_GID}
     build:

addons/godot_xterm/native/godot-xterm.gdextension

@@ -9,6 +9,8 @@ linux.debug.x86_64 = "res://addons/godot_xterm/native/bin/libgodot-xterm.linux.t
 linux.release.x86_64 = "res://addons/godot_xterm/native/bin/libgodot-xterm.linux.template_release.x86_64.so"
 linux.debug.x86_32 = "res://addons/godot_xterm/native/bin/libgodot-xterm.linux.template_debug.x86_32.so"
 linux.release.x86_32 = "res://addons/godot_xterm/native/bin/libgodot-xterm.linux.template_release.x86_32.so"
+web.debug.wasm32 = "res://addons/godot_xterm/native/bin/libgodot-xterm.web.template_debug.wasm32.wasm"
+web.release.wasm32 = "res://addons/godot_xterm/native/bin/libgodot-xterm.web.template_release.wasm32.wasm"
 macos.debug = "res://addons/godot_xterm/native/bin/libgodot-xterm.macos.template_debug.framework"
 macos.release = "res://addons/godot_xterm/native/bin/libgodot-xterm.macos.template_release.framework"
 windows.debug.x86_64 = "res://addons/godot_xterm/native/bin/libgodot-xterm.windows.template_debug.x86_64.dll"

docs/index.md

@@ -10,7 +10,7 @@
 
 GDNative terminal for Godot.
 Built using [libtsm](https://www.freedesktop.org/wiki/Software/libtsm/), [libuv](https://github.com/libuv/libuv), and [node-pty](https://github.com/microsoft/node-pty).
-Primarily developed and tested on Linux, it also supports macOS with partial support for Windows and HTML5. See the [Features section](introduction.md#features) for more detail.
+Primarily developed and tested on Linux, it also supports macOS with partial support for Windows and Web. See the [Features section](introduction.md#features) for more detail.
 
 <video width="100%" controls>
   <source src="https://user-images.githubusercontent.com/3696783/126894061-a69eb6ad-9979-4723-ade7-829494a9fc87.mp4" />

docs/introduction.md

@@ -51,7 +51,13 @@ See the [Setup section](/setup/index.md) for more details.
 
 Other examples of GodotXterm usage are available online:
 
-- [**Live Demo**](https://lihop.github.io/godot-xterm-dist/demo): An HTML5 export of the GodotXterm repo's example scenes.
+- [**Live Demo**](https://lihop.github.io/godot-xterm-dist/demo): A Web export of the GodotXterm repo's example scenes.
+
+:::{error}
+The Web export made with the latest version of the plugin has been verified to work with Google's Chrome browser, and known not to work with Firefox.
+Some aspects of this may be due to the poor compatibility of Godot 4's Web exports with various browsers.
+If you are wanting to export to web, consider using an older version of the plugin built for Godot 3.
+:::
 
 - [**The Guest**](https://lihop.itch.io/the-guest): A Linux only submission to the [Linux Game Jam 2022](https://itch.io/jam/linux-game-jam-2022). Uses GodotXterm in conjunction with the [gdtemu addon](https://github.com/lihop/gdtemu) and Linux's Kernel-based Virtual Machine, to provide the player with an interactive VM that can be used in the game world.
 

docs/setup/building_from_source.md

@@ -48,6 +48,6 @@ Also feel free to open a new discussion in the [discussions](https://github.com/
 
 ## Cross Compiling
 
-Although the SConstruct file contains some logic for cross-compiling, it has never been tested. If you want compile for other platforms consider forking this repo and then pushing your changes to GitHub. The workflow defined in {{ '[main.yml]({}/.github/workflows/main.yml)'.format(repo) }} will run and build the library for all supported platforms (Linux, macOS, Windows, and HTML5).
+Although the SConstruct file contains some logic for cross-compiling, it has never been tested. If you want compile for other platforms consider forking this repo and then pushing your changes to GitHub. The workflow defined in {{ '[main.yml]({}/.github/workflows/main.yml)'.format(repo) }} will run and build the library for all supported platforms (Linux, macOS, Windows, and Web).
 
-Additionally, If you have `docker` and `docker-compose` installed, the {{ '[build.sh]({}/addons/godot_xterm/native/build.sh)'.format(repo) }} script will also try to build the HTML5 binary inside a docker container and copy them to `addons/godot_xterm/native/bin`.
+Additionally, If you have `docker` and `docker-compose` installed, the {{ '[build.sh]({}/addons/godot_xterm/native/build.sh)'.format(repo) }} script will also try to build the Web binary inside a docker container and copy them to `addons/godot_xterm/native/bin`.

examples/menu/menu.gd

@@ -25,7 +25,7 @@ var menu_items := [
 		"scene":
 		(
 			preload("../web_console/web_console.tscn")
-			if OS.has_feature("JavaScript")
+			if OS.has_feature("web")
 			else preload("../terminal/terminal.tscn")
 		)
 	},
@@ -157,18 +157,16 @@ func _on_Terminal_key_pressed(data: String, event: InputEventKey) -> void:
 					)
 					return
 				var scene = item.scene.instantiate()
-				var pty = scene if OS.has_feature("JavaScript") else scene.get_node("PTY")
+				var pty = scene if OS.has_feature("web") else scene.get_node("PTY")
 				add_child(scene)
 				scene.grab_focus()
 				await pty.exited
 				$Terminal.grab_focus()
 				scene.queue_free()
 			"Exit":
-				pass
-				# FIXME
-				#if OS.has_feature("JavaScript"):
-				#JavaScript.eval("window.history.back() || window.close()")
-				#get_tree().quit()
+				if OS.has_feature("web"):
+					JavaScriptBridge.eval("window.history.back() || window.close()")
+				get_tree().quit()
 
 
 func _on_Asciicast_key_pressed(

examples/web_console/web_console.gd

@@ -8,7 +8,7 @@ var line := ""
 var _tput
 
 @onready var terminal = $Terminal
-@onready var _has_js: bool = OS.has_feature("JavaScript")
+@onready var _has_js: bool = OS.has_feature("web")
 
 
 func prompt(prompt: String):
@@ -42,10 +42,10 @@ func _on_Terminal_key_pressed(_data, event: InputEventKey):
 	if not event:
 		return
 
-	# For some reason, data String is malformed on HTML5, so only use event.unicode.
+	# For some reason, data String is malformed on Web, so only use event.unicode.
 	var data = char(event.unicode)
 
-	match event.scancode:
+	match event.keycode:
 		KEY_ENTER:
 			terminal.write("\r\n")
 
@@ -53,22 +53,20 @@ func _on_Terminal_key_pressed(_data, event: InputEventKey):
 				return emit_signal("exited", 0)
 
 			if not _has_js:
-				var msg := "WebConsole only available in HTML5 build."
+				var msg := "WebConsole only available in Web build."
 				push_error(msg)
 				_tput.setaf(TPut.ANSIColor.red)
 				terminal.write(msg)
 				_tput.sgr0()
 				prompt("\r\n>> ")
 			else:
-				# TODO: godot4
-				pass
-#				var json = JavaScript.eval("JSON.stringify(%s)" % line, true)
-#				_tput.setaf(TPut.ANSIColor.magenta)
-#				terminal.write(str(json))
-#				_tput.sgr0()
+				var json = JavaScriptBridge.eval("JSON.stringify(%s)" % line, true)
+				_tput.setaf(TPut.ANSIColor.magenta)
+				terminal.write(str(json))
+				_tput.sgr0()
 
 			line = ""
-			#_tput.srg0()
+			_tput.sgr0()
 			prompt("\r\n>> ")
 
 		KEY_BACKSPACE:

examples/web_console/web_console.tscn

@@ -1,5 +1,6 @@
-[gd_scene load_steps=2 format=3 uid="uid://d3xc4utggdchf"]
+[gd_scene load_steps=3 format=3 uid="uid://d3xc4utggdchf"]
 
+[ext_resource type="Theme" uid="uid://0gk8swmcldbg" path="res://addons/godot_xterm/themes/default.tres" id="1_28w8r"]
 [ext_resource type="Script" path="res://examples/web_console/web_console.gd" id="3"]
 
 [node name="WebConsole" type="Control"]
@@ -9,9 +10,12 @@ anchor_right = 1.0
 anchor_bottom = 1.0
 grow_horizontal = 2
 grow_vertical = 2
+theme = ExtResource("1_28w8r")
 script = ExtResource("3")
 
 [node name="Terminal" type="Terminal" parent="."]
 layout_mode = 0
 anchor_right = 1.0
 anchor_bottom = 1.0
+
+[connection signal="key_pressed" from="Terminal" to="." method="_on_Terminal_key_pressed"]

export_presets.cfg

@@ -1,21 +1,25 @@
 [preset.0]
 
-name="HTML5"
-platform="HTML5"
+name="Web"
+platform="Web"
 runnable=true
+dedicated_server=false
 custom_features=""
-export_filter="all_resources"
-include_filter="*.cast, addons/godot_xterm/plugin.cfg, addons/godot_xterm/themes/fonts/hack/hack_regular-3.003.ttf"
-exclude_filter="misc/*, **/thirdparty/*, **/unifont/*, **/nerd_fonts/*, **/noto_color_emoji/*, *bold*.ttf, *italic*.ttf"
+export_filter="resources"
+export_files=PackedStringArray("res://addons/godot_xterm/shaders/foreground.gdshader", "res://addons/godot_xterm/native/godot-xterm.gdextension", "res://addons/godot_xterm/shaders/background.gdshader", "res://addons/godot_xterm/shaders/common.gdshaderinc", "res://examples/web_console/web_console.gd", "res://examples/web_console/web_console.tscn", "res://examples/menu/menu.gd", "res://examples/menu/menu.tscn", "res://examples/asciicast/asciicast.tscn", "res://examples/asciicast/example.cast", "res://addons/godot_xterm/util/tput.gd", "res://examples/terminal/terminal.tscn", "res://examples/terminal/terminal.gd")
+include_filter="addons/godot_xterm/native/bin/*.wasm"
+exclude_filter=""
 export_path="docs/demo/index.html"
-script_export_mode=1
-script_encryption_key=""
+encryption_include_filters=""
+encryption_exclude_filters=""
+encrypt_pck=false
+encrypt_directory=false
 
 [preset.0.options]
 
 custom_template/debug=""
 custom_template/release=""
-variant/export_type=2
+variant/extensions_support=true
 vram_texture_compression/for_desktop=true
 vram_texture_compression/for_mobile=false
 html/export_icon=true
@@ -31,4 +35,4 @@ progressive_web_app/orientation=0
 progressive_web_app/icon_144x144=""
 progressive_web_app/icon_180x180=""
 progressive_web_app/icon_512x512=""
-progressive_web_app/background_color=Color( 0, 0, 0, 1 )
+progressive_web_app/background_color=Color(0, 0, 0, 1)

test/html5/cypress.config.js

@@ -1,10 +0,0 @@
-const { defineConfig } = require("cypress");
-const getCompareSnapshotsPlugin = require("cypress-image-diff-js/dist/plugin");
-
-module.exports = defineConfig({
-  e2e: {
-    setupNodeEvents(on, config) {
-      getCompareSnapshotsPlugin(on, config);
-    },
-  },
-});

test/html5/cypress/e2e/smoke_test.cy.js

@@ -1,23 +0,0 @@
-Cypress.on("window:before:load", (win) => {
-  cy.spy(win.console, "error");
-  cy.spy(win.console, "warn");
-  cy.spy(win.console, "log");
-});
-
-describe("GodotXterm HTML5 export", () => {
-  it("Loads and runs without error", () => {
-    cy.visit("http://localhost:3000");
-    cy.compareSnapshot("menu", 0.9, {
-      limit: 100,
-      delay: 200,
-      timeout: 20000,
-    });
-    cy.get("body").type("{downArrow}{enter}");
-    cy.get("body").type('window.console.log("It works!"){enter}');
-    cy.window().then((win) => {
-      cy.expect(win.console.error).to.have.callCount(0);
-      cy.expect(win.console.warn).to.have.callCount(0);
-      cy.expect(win.console.log).to.be.calledWith("It works!");
-    });
-  });
-});

test/html5/cypress/support/commands.js

@@ -1,2 +0,0 @@
-import compareSnapshotCommand from "cypress-image-diff-js/dist/command";
-compareSnapshotCommand();

test/html5/cypress/support/e2e.js

@@ -1 +0,0 @@
-import "./commands";

test/html5/package.json

@@ -1,11 +0,0 @@
-{
-  "scripts": {
-    "start": "npx serve ../../docs/demo",
-    "test": "npx cypress run"
-  },
-  "devDependencies": {
-    "cypress": "^10.4.0",
-    "cypress-image-diff-js": "^1.21.1",
-    "serve": "^14.0.1"
-  }
-}

test/html5/shell.nix

@@ -1,14 +0,0 @@
-let
-  pkgs = import <nixpkgs> {};
-in pkgs.mkShell {
-  buildInputs = with pkgs; [
-    cypress
-    nodejs-16_x
-    xsel
-  ];
-
-  shellHook = ''
-    export CYPRESS_INSTALL_BINARY=0
-    export CYPRESS_RUN_BINARY=${pkgs.cypress}/bin/Cypress
-  '';
-}

test/web/package-lock.json

@@ -0,0 +1,788 @@
+{
+  "name": "web",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "devDependencies": {
+        "express": "^4.19.2",
+        "playwright": "^1.42.1"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "1.3.8",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/array-flatten": {
+      "version": "1.1.1",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/body-parser": {
+      "version": "1.20.2",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "3.1.2",
+        "content-type": "~1.0.5",
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.4.24",
+        "on-finished": "2.4.1",
+        "qs": "6.11.0",
+        "raw-body": "2.5.2",
+        "type-is": "~1.6.18",
+        "unpipe": "1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8",
+        "npm": "1.2.8000 || >= 1.4.16"
+      }
+    },
+    "node_modules/body-parser/node_modules/bytes": {
+      "version": "3.1.2",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/body-parser/node_modules/debug": {
+      "version": "2.6.9",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/body-parser/node_modules/ms": {
+      "version": "2.0.0",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/body-parser/node_modules/qs": {
+      "version": "6.11.0",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "side-channel": "^1.0.4"
+      },
+      "engines": {
+        "node": ">=0.6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/call-bind": {
+      "version": "1.0.7",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "es-define-property": "^1.0.0",
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2",
+        "get-intrinsic": "^1.2.4",
+        "set-function-length": "^1.2.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/content-type": {
+      "version": "1.0.5",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie": {
+      "version": "0.6.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie-signature": {
+      "version": "1.0.6",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/define-data-property": {
+      "version": "1.1.4",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "es-define-property": "^1.0.0",
+        "es-errors": "^1.3.0",
+        "gopd": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/depd": {
+      "version": "2.0.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/destroy": {
+      "version": "1.2.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8",
+        "npm": "1.2.8000 || >= 1.4.16"
+      }
+    },
+    "node_modules/ee-first": {
+      "version": "1.1.1",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/encodeurl": {
+      "version": "1.0.2",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/es-define-property": {
+      "version": "1.0.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "get-intrinsic": "^1.2.4"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-errors": {
+      "version": "1.3.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/escape-html": {
+      "version": "1.0.3",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/etag": {
+      "version": "1.8.1",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/express": {
+      "version": "4.19.2",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "accepts": "~1.3.8",
+        "array-flatten": "1.1.1",
+        "body-parser": "1.20.2",
+        "content-disposition": "0.5.4",
+        "content-type": "~1.0.4",
+        "cookie": "0.6.0",
+        "cookie-signature": "1.0.6",
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "finalhandler": "1.2.0",
+        "fresh": "0.5.2",
+        "http-errors": "2.0.0",
+        "merge-descriptors": "1.0.1",
+        "methods": "~1.1.2",
+        "on-finished": "2.4.1",
+        "parseurl": "~1.3.3",
+        "path-to-regexp": "0.1.7",
+        "proxy-addr": "~2.0.7",
+        "qs": "6.11.0",
+        "range-parser": "~1.2.1",
+        "safe-buffer": "5.2.1",
+        "send": "0.18.0",
+        "serve-static": "1.15.0",
+        "setprototypeof": "1.2.0",
+        "statuses": "2.0.1",
+        "type-is": "~1.6.18",
+        "utils-merge": "1.0.1",
+        "vary": "~1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.10.0"
+      }
+    },
+    "node_modules/express/node_modules/content-disposition": {
+      "version": "0.5.4",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "5.2.1"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/express/node_modules/debug": {
+      "version": "2.6.9",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/express/node_modules/ms": {
+      "version": "2.0.0",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/express/node_modules/path-to-regexp": {
+      "version": "0.1.7",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/express/node_modules/qs": {
+      "version": "6.11.0",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "side-channel": "^1.0.4"
+      },
+      "engines": {
+        "node": ">=0.6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/express/node_modules/range-parser": {
+      "version": "1.2.1",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/finalhandler": {
+      "version": "1.2.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "debug": "2.6.9",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "on-finished": "2.4.1",
+        "parseurl": "~1.3.3",
+        "statuses": "2.0.1",
+        "unpipe": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/finalhandler/node_modules/debug": {
+      "version": "2.6.9",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/finalhandler/node_modules/ms": {
+      "version": "2.0.0",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/forwarded": {
+      "version": "0.2.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/fresh": {
+      "version": "0.5.2",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/function-bind": {
+      "version": "1.1.2",
+      "dev": true,
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-intrinsic": {
+      "version": "1.2.4",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2",
+        "has-proto": "^1.0.1",
+        "has-symbols": "^1.0.3",
+        "hasown": "^2.0.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/gopd": {
+      "version": "1.0.1",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "get-intrinsic": "^1.1.3"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/has-property-descriptors": {
+      "version": "1.0.2",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "es-define-property": "^1.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/has-proto": {
+      "version": "1.0.3",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/has-symbols": {
+      "version": "1.0.3",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/hasown": {
+      "version": "2.0.2",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/http-errors": {
+      "version": "2.0.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "depd": "2.0.0",
+        "inherits": "2.0.4",
+        "setprototypeof": "1.2.0",
+        "statuses": "2.0.1",
+        "toidentifier": "1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/iconv-lite": {
+      "version": "0.4.24",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/inherits": {
+      "version": "2.0.4",
+      "dev": true,
+      "license": "ISC"
+    },
+    "node_modules/ipaddr.js": {
+      "version": "1.9.1",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
+    "node_modules/media-typer": {
+      "version": "0.3.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/merge-descriptors": {
+      "version": "1.0.1",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/methods": {
+      "version": "1.1.2",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime": {
+      "version": "1.6.0",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "mime": "cli.js"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/mime-db": {
+      "version": "1.52.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime-types": {
+      "version": "2.1.35",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "mime-db": "1.52.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/negotiator": {
+      "version": "0.6.3",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/object-inspect": {
+      "version": "1.13.1",
+      "dev": true,
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/on-finished": {
+      "version": "2.4.1",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ee-first": "1.1.1"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/parseurl": {
+      "version": "1.3.3",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/playwright": {
+      "version": "1.42.1",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "playwright-core": "1.42.1"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=16"
+      },
+      "optionalDependencies": {
+        "fsevents": "2.3.2"
+      }
+    },
+    "node_modules/playwright-core": {
+      "version": "1.42.1",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "playwright-core": "cli.js"
+      },
+      "engines": {
+        "node": ">=16"
+      }
+    },
+    "node_modules/proxy-addr": {
+      "version": "2.0.7",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "forwarded": "0.2.0",
+        "ipaddr.js": "1.9.1"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
+    "node_modules/raw-body": {
+      "version": "2.5.2",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "3.1.2",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.4.24",
+        "unpipe": "1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/raw-body/node_modules/bytes": {
+      "version": "3.1.2",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/safe-buffer": {
+      "version": "5.2.1",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
+    "node_modules/safer-buffer": {
+      "version": "2.1.2",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/send": {
+      "version": "0.18.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "fresh": "0.5.2",
+        "http-errors": "2.0.0",
+        "mime": "1.6.0",
+        "ms": "2.1.3",
+        "on-finished": "2.4.1",
+        "range-parser": "~1.2.1",
+        "statuses": "2.0.1"
+      },
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
+    "node_modules/send/node_modules/debug": {
+      "version": "2.6.9",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/send/node_modules/debug/node_modules/ms": {
+      "version": "2.0.0",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/send/node_modules/ms": {
+      "version": "2.1.3",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/send/node_modules/range-parser": {
+      "version": "1.2.1",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/serve-static": {
+      "version": "1.15.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.3",
+        "send": "0.18.0"
+      },
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
+    "node_modules/set-function-length": {
+      "version": "1.2.2",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "define-data-property": "^1.1.4",
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2",
+        "get-intrinsic": "^1.2.4",
+        "gopd": "^1.0.1",
+        "has-property-descriptors": "^1.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/setprototypeof": {
+      "version": "1.2.0",
+      "dev": true,
+      "license": "ISC"
+    },
+    "node_modules/side-channel": {
+      "version": "1.0.6",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "call-bind": "^1.0.7",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.4",
+        "object-inspect": "^1.13.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/statuses": {
+      "version": "2.0.1",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/toidentifier": {
+      "version": "1.0.1",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
+    "node_modules/type-is": {
+      "version": "1.6.18",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.24"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/utils-merge": {
+      "version": "1.0.1",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4.0"
+      }
+    },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    }
+  }
+}

test/web/package.json

@@ -0,0 +1,9 @@
+{
+  "scripts": {
+    "test": "node smoke_test.js"
+  },
+  "devDependencies": {
+    "express": "^4.19.2",
+    "playwright": "^1.42.1"
+  }
+}

test/web/shell.nix

@@ -0,0 +1,11 @@
+let
+  pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/23.11.tar.gz") {};
+in pkgs.mkShell {
+  buildInputs = with pkgs; [
+    nodejs
+  ];
+
+  shellHook = ''
+    export GODOT_XTERM_CHROME_PATH=${pkgs.chromium}/bin/chromium
+  '';
+}

test/web/smoke_test.js

@@ -0,0 +1,65 @@
+const { chromium } = require("playwright");
+const express = require("express");
+
+(async () => {
+  // Server setup.
+  const app = express();
+  const port = 3000;
+  app.use(
+    express.static("../../docs/demo", {
+      setHeaders: (res, path, stat) => {
+        res.set("Cross-Origin-Embedder-Policy", "require-corp");
+        res.set("Cross-Origin-Opener-Policy", "same-origin");
+      },
+    }),
+  );
+
+  const server = app.listen(port, () => {
+    console.log(`Server listening at http://localhost:${port}`);
+  });
+
+  // Determine whether to set the executablePath.
+  const launchOptions = {};
+  if (process.env.GODOT_XTERM_CHROME_PATH) {
+    launchOptions.executablePath = process.env.GODOT_XTERM_CHROME_PATH;
+  }
+
+  // Launch the browser with conditional executablePath.
+  const browser = await chromium.launch(launchOptions);
+  const page = await browser.newPage();
+
+  let loggedMessages = [];
+  page.on("console", (msg) => {
+    loggedMessages.push(msg.text());
+  });
+
+  await page.goto(`http://localhost:${port}`);
+
+  // TODO: Don't wait for a fixed amount of time, but rather for a baseline screenshot to match.
+  await page.waitForTimeout(5000);
+
+  // Page interaction
+  await page.keyboard.press("ArrowDown");
+  await page.keyboard.press("Enter");
+
+  await page.keyboard.type('window.console.log("It works!")');
+  await page.keyboard.press("Enter");
+
+  // Close the browser
+  await browser.close();
+
+  const hasItWorkedLog = loggedMessages.some((message) =>
+    message.includes("It works!"),
+  );
+  if (!hasItWorkedLog) {
+    console.error("Test failed: 'It works!' was not logged to the console.");
+  } else {
+    console.log("Test passed: 'It works!' was successfully logged.");
+  }
+
+  // Stop the server
+  server.close(() => {
+    console.log("Server stopped");
+    process.exit(hasItWorkedLog ? 0 : 1);
+  });
+})();