From 8a3dfa4bcab529ff96aedecdefbbc73426a50305 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Wed, 14 Apr 2021 23:52:01 +0800
Subject: [PATCH] fixup! fix: disable realContentHash optimization in app
 target

---
 packages/@vue/cli-service/lib/config/app.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/packages/@vue/cli-service/lib/config/app.js b/packages/@vue/cli-service/lib/config/app.js
index f5eb4bdad4..46a767ed4c 100644
--- a/packages/@vue/cli-service/lib/config/app.js
+++ b/packages/@vue/cli-service/lib/config/app.js
@@ -33,8 +33,15 @@ module.exports = (api, options) => {
         .filename(outputFilename)
         .chunkFilename(outputFilename)
 
-    webpackConfig.optimization
-      .set('realContentHash', false)
+    const webpack = require('webpack')
+    const { semver } = require('@vue/cli-shared-utils')
+    const webpackMajor = semver.major(webpack.version)
+    if (webpackMajor !== 4) {
+      // FIXME: a temporary workaround to get accurate contenthash in `applyLegacy`
+      // Should use a better fix per discussions at <https://github.com/jantimon/html-webpack-plugin/issues/1554#issuecomment-753653580>
+      webpackConfig.optimization
+        .set('realContentHash', false)
+    }
 
     // code splitting
     if (process.env.NODE_ENV !== 'test') {