From 39a6f128f107befc60a80252239092d48e508968 Mon Sep 17 00:00:00 2001
From: Michael Chus <mike@mchus.pro>
Date: Wed, 22 Apr 2026 21:40:40 +0300
Subject: [PATCH] fix(viewer): serve static js with script mime type

---
 bible                  |  2 +-
 viewer/handler_test.go | 19 +++++++++++++++++++
 web/embed.go           |  7 +++++++
 3 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/bible b/bible
index 688b87e..d2600f1 160000
--- a/bible
+++ b/bible
@@ -1 +1 @@
-Subproject commit 688b87e98deed5fadd71e10e123073640d92c15a
+Subproject commit d2600f12799451cd5233a8d2c0e3235d1e7d25ab
diff --git a/viewer/handler_test.go b/viewer/handler_test.go
index 2100dee..e7d8e01 100644
--- a/viewer/handler_test.go
+++ b/viewer/handler_test.go
@@ -82,3 +82,22 @@ func TestStandaloneHandlerRootShowsUploadForm(t *testing.T) {
 		t.Fatalf("expected standalone handler root to include upload form")
 	}
 }
+
+func TestStaticJSUsesScriptContentType(t *testing.T) {
+	handler := NewHandler(HandlerOptions{Title: "Reanimator Chart"})
+
+	req := httptest.NewRequest(http.MethodGet, "/static/view.js", nil)
+	rec := httptest.NewRecorder()
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusOK)
+	}
+	contentType := rec.Header().Get("Content-Type")
+	if !strings.Contains(contentType, "javascript") {
+		t.Fatalf("Content-Type = %q, want javascript MIME type", contentType)
+	}
+	if !strings.Contains(rec.Body.String(), "DOMContentLoaded") {
+		t.Fatalf("expected static JS asset body to be served")
+	}
+}
diff --git a/web/embed.go b/web/embed.go
index 7c8ed20..6cd6d08 100644
--- a/web/embed.go
+++ b/web/embed.go
@@ -4,6 +4,7 @@ import (
 	"embed"
 	"html/template"
 	"io/fs"
+	"mime"
 	"net/http"
 	"strings"
 )
@@ -19,6 +20,12 @@ var pageTemplate = template.Must(template.New("view.html").Funcs(template.FuncMa
 
 var uploadTemplate = template.Must(template.New("upload.html").ParseFS(content, "templates/upload.html"))
 
+func init() {
+	if err := mime.AddExtensionType(".js", "text/javascript; charset=utf-8"); err != nil {
+		panic(err)
+	}
+}
+
 func Render(data any) ([]byte, error) {
 	var out strings.Builder
 	if err := pageTemplate.ExecuteTemplate(&out, "view.html", data); err != nil {