Remove xhr2 dependency.

generator/src/build.js

@@ -30,7 +30,9 @@ async function ensureRequiredDirs() {
 
 async function run(options) {
   await ensureRequiredDirs();
-  XMLHttpRequest = require("xhr2");
+  // since init/update are never called in pre-renders, and DataSource.Http is called using undici
+  // we can provide a fake HTTP instead of xhr2 (which is otherwise needed for Elm HTTP requests from Node)
+  XMLHttpRequest = {};
 
   const generateCode = codegen.generate();
 

generator/src/render.js

@@ -22,7 +22,9 @@ module.exports =
    * @returns
    */
   async function run(elmModule, path, request, addDataSourceWatcher) {
-    XMLHttpRequest = require("xhr2");
+    // since init/update are never called in pre-renders, and DataSource.Http is called using undici
+    // we can provide a fake HTTP instead of xhr2 (which is otherwise needed for Elm HTTP requests from Node)
+    XMLHttpRequest = {};
     const result = await runElmApp(
       elmModule,
       path,

package-lock.json

@@ -24,8 +24,7 @@
         "object-hash": "^2.2.0",
         "serve-static": "^1.14.1",
         "terser": "^5.7.0",
-        "undici": "^4.1.0",
+        "undici": "^4.1.0"
-        "xhr2": "^0.2.1"
       },
       "bin": {
         "elm-pages": "generator/src/cli.js"
@@ -5988,14 +5987,6 @@
         }
       }
     },
-    "node_modules/xhr2": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/xhr2/-/xhr2-0.2.1.tgz",
-      "integrity": "sha512-sID0rrVCqkVNUn8t6xuv9+6FViXjUVXq8H5rWOH2rz9fDNQEd4g0EA2XlcEdJXRz5BMEn4O1pJFdT+z4YHhoWw==",
-      "engines": {
-        "node": ">= 6"
-      }
-    },
     "node_modules/xmlbuilder": {
       "version": "13.0.2",
       "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-13.0.2.tgz",
@@ -10831,11 +10822,6 @@
       "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==",
       "requires": {}
     },
-    "xhr2": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/xhr2/-/xhr2-0.2.1.tgz",
-      "integrity": "sha512-sID0rrVCqkVNUn8t6xuv9+6FViXjUVXq8H5rWOH2rz9fDNQEd4g0EA2XlcEdJXRz5BMEn4O1pJFdT+z4YHhoWw=="
-    },
     "xmlbuilder": {
       "version": "13.0.2",
       "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-13.0.2.tgz",

package.json

@@ -38,8 +38,7 @@
     "object-hash": "^2.2.0",
     "serve-static": "^1.14.1",
     "terser": "^5.7.0",
-    "undici": "^4.1.0",
+    "undici": "^4.1.0"
-    "xhr2": "^0.2.1"
   },
   "devDependencies": {
     "@types/cross-spawn": "^6.0.2",