3 files changed, 53 insertions, 43 deletions
diff --git a/templates/base/footer.tmpl b/templates/base/footer.tmpl
index 1aabfa2f5c..9bf16f8aa5 100644
--- a/templates/base/footer.tmpl
+++ b/templates/base/footer.tmpl
@@ -22,7 +22,7 @@
 		<script src='https://hcaptcha.com/1/api.js' async></script>
 	{{end}}
 {{end}}
-	<script src="{{AssetUrlPrefix}}/js/index.js?v={{MD5 AppVer}}"></script>
+	<script src="{{AssetUrlPrefix}}/js/index.js?v={{MD5 AppVer}}" onerror="alert('Failed to load asset files from ' + this.src + ', please make sure the asset files can be accessed and the ROOT_URL setting in app.ini is correct.')"></script>
 {{template "custom/footer" .}}
 </body>
 </html>
diff --git a/templates/base/head.tmpl b/templates/base/head.tmpl
index 2a9c24255d..35157e9b95 100644
--- a/templates/base/head.tmpl
+++ b/templates/base/head.tmpl
@@ -19,51 +19,12 @@
 	<link rel="alternate" type="application/atom+xml" title="" href="{{.FeedURL}}.atom">
 	<link rel="alternate" type="application/rss+xml" title="" href="{{.FeedURL}}.rss">
 {{end}}
-	<script>
-		<!-- /* eslint-disable */ -->
-		window.config = {
-			appVer: '{{AppVer}}',
-			appSubUrl: '{{AppSubUrl}}',
-			assetUrlPrefix: '{{AssetUrlPrefix}}',
-			runModeIsProd: {{.RunModeIsProd}},
-			customEmojis: {{CustomEmojis}},
-			useServiceWorker: {{UseServiceWorker}},
-			csrfToken: '{{.CsrfToken}}',
-			pageData: {{.PageData}},
-			requireTribute: {{.RequireTribute}},
-			notificationSettings: {{NotificationSettings}}, {{/*a map provided by NewFuncMap in helper.go*/}}
-			enableTimeTracking: {{EnableTimetracking}},
-			{{if .RequireTribute}}
-			tributeValues: Array.from(new Map([
-				{{ range .Participants }}
-				['{{.Name}}', {key: '{{.Name}} {{.FullName}}', value: '{{.Name}}',
-				name: '{{.Name}}', fullname: '{{.FullName}}', avatar: '{{.AvatarLink}}'}],
-				{{ end }}
-				{{ range .Assignees }}
-				['{{.Name}}', {key: '{{.Name}} {{.FullName}}', value: '{{.Name}}',
-				name: '{{.Name}}', fullname: '{{.FullName}}', avatar: '{{.AvatarLink}}'}],
-				{{ end }}
-				{{ range .MentionableTeams }}
-					['{{$.MentionableTeamsOrg}}/{{.Name}}', {key: '{{$.MentionableTeamsOrg}}/{{.Name}}', value: '{{$.MentionableTeamsOrg}}/{{.Name}}',
-					name: '{{$.MentionableTeamsOrg}}/{{.Name}}', avatar: '{{$.MentionableTeamsOrgAvatar}}'}],
-				{{ end }}
-			]).values()),
-			{{end}}
-			mermaidMaxSourceCharacters: {{MermaidMaxSourceCharacters}},
-			{{/* this global i18n object should only contain general texts. for specialized texts, it should be provided inside the related modules by: (1) API response (2) HTML data-attribute (3) PageData */}}
-			i18n: {
-				copy_success: '{{.i18n.Tr "copy_success"}}',
-				copy_error: '{{.i18n.Tr "copy_error"}}',
-				error_occurred: '{{.i18n.Tr "error.occurred"}}',
-				network_error: '{{.i18n.Tr "error.network_error"}}',
-			},
-		};
-		{{/* in case some pages don't render the pageData, we make sure it is an object to prevent null access */}}
-		window.config.pageData = window.config.pageData || {};
-	</script>
 	<link rel="icon" href="{{AssetUrlPrefix}}/img/logo.svg" type="image/svg+xml">
 	<link rel="alternate icon" href="{{AssetUrlPrefix}}/img/favicon.png" type="image/png">
 	<link rel="stylesheet" href="{{AssetUrlPrefix}}/css/index.css?v={{MD5 AppVer}}">
+
+	{{template "base/head_script" .}}
+
 	<noscript>
 		<style>
 			.dropdown:hover > .menu { display: block; }
diff --git a/templates/base/head_script.tmpl b/templates/base/head_script.tmpl
new file mode 100644
index 0000000000..e6a8060a16
--- /dev/null
+++ b/templates/base/head_script.tmpl
@@ -0,0 +1,49 @@
+{{/*
+==== DO NOT EDIT ====
+If you are customizing Gitea, please do not change this file.
+If you introduce mistakes in it, Gitea JavaScript code wouldn't run correctly.
+*/}}
+<script>
+	<!-- /* eslint-disable */ -->
+	window.addEventListener('error', function(e) {window._globalHandlerErrors=window._globalHandlerErrors||[]; window._globalHandlerErrors.push(e);});
+	window.config = {
+		appVer: '{{AppVer}}',
+		appUrl: '{{AppUrl}}',
+		appSubUrl: '{{AppSubUrl}}',
+		assetUrlPrefix: '{{AssetUrlPrefix}}',
+		runModeIsProd: {{.RunModeIsProd}},
+		customEmojis: {{CustomEmojis}},
+		useServiceWorker: {{UseServiceWorker}},
+		csrfToken: '{{.CsrfToken}}',
+		pageData: {{.PageData}},
+		requireTribute: {{.RequireTribute}},
+		notificationSettings: {{NotificationSettings}}, {{/*a map provided by NewFuncMap in helper.go*/}}
+		enableTimeTracking: {{EnableTimetracking}},
+		{{if .RequireTribute}}
+		tributeValues: Array.from(new Map([
+			{{ range .Participants }}
+			['{{.Name}}', {key: '{{.Name}} {{.FullName}}', value: '{{.Name}}',
+			name: '{{.Name}}', fullname: '{{.FullName}}', avatar: '{{.AvatarLink}}'}],
+			{{ end }}
+			{{ range .Assignees }}
+			['{{.Name}}', {key: '{{.Name}} {{.FullName}}', value: '{{.Name}}',
+			name: '{{.Name}}', fullname: '{{.FullName}}', avatar: '{{.AvatarLink}}'}],
+			{{ end }}
+			{{ range .MentionableTeams }}
+				['{{$.MentionableTeamsOrg}}/{{.Name}}', {key: '{{$.MentionableTeamsOrg}}/{{.Name}}', value: '{{$.MentionableTeamsOrg}}/{{.Name}}',
+				name: '{{$.MentionableTeamsOrg}}/{{.Name}}', avatar: '{{$.MentionableTeamsOrgAvatar}}'}],
+			{{ end }}
+		]).values()),
+		{{end}}
+		mermaidMaxSourceCharacters: {{MermaidMaxSourceCharacters}},
+		{{/* this global i18n object should only contain general texts. for specialized texts, it should be provided inside the related modules by: (1) API response (2) HTML data-attribute (3) PageData */}}
+		i18n: {
+			copy_success: '{{.i18n.Tr "copy_success"}}',
+			copy_error: '{{.i18n.Tr "copy_error"}}',
+			error_occurred: '{{.i18n.Tr "error.occurred"}}',
+			network_error: '{{.i18n.Tr "error.network_error"}}',
+		},
+	};
+	{{/* in case some pages don't render the pageData, we make sure it is an object to prevent null access */}}
+	window.config.pageData = window.config.pageData || {};
+</script>