From 71d600aa627a8d413489ec2c10f56063b56f5bdc Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Tue, 10 Jun 2025 05:07:35 +0000
Subject: [PATCH] Fix SVG entry point handling with data URL and file emission

---
 chevron-down.svg                             |  1 +
 src/bundler/linker_context/computeChunks.zig |  4 ++++
 style.css                                    |  3 +++
 test/bundler/bundler_edgecase.test.ts        | 24 ++++++++++++++++++++
 4 files changed, 32 insertions(+)
 create mode 100644 chevron-down.svg
 create mode 100644 style.css

diff --git a/chevron-down.svg b/chevron-down.svg
new file mode 100644
index 0000000000..f680446895
--- /dev/null
+++ b/chevron-down.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down-icon lucide-chevron-down"><path d="m6 9 6 6 6-6"/></svg>
\ No newline at end of file
diff --git a/src/bundler/linker_context/computeChunks.zig b/src/bundler/linker_context/computeChunks.zig
index 6aef6b0f0c..f0c8d7de91 100644
--- a/src/bundler/linker_context/computeChunks.zig
+++ b/src/bundler/linker_context/computeChunks.zig
@@ -195,6 +195,10 @@ pub noinline fn computeChunks(
                     const entry_bits: *const AutoBitSet = &file_entry_bits[source_index.get()];
                     if (css_reprs[source_index.get()] != null) continue;
 
+                    // Check if this file has a JavaScript-like loader
+                    const loader = loaders[source_index.get()];
+                    if (!loader.isJavaScriptLike()) continue;
+
                     if (this.graph.code_splitting) {
                         const js_chunk_key = try temp_allocator.dupe(u8, entry_bits.bytes(this.graph.entry_points.len));
                         var js_chunk_entry = try js_chunks.getOrPut(js_chunk_key);
diff --git a/style.css b/style.css
new file mode 100644
index 0000000000..652999399f
--- /dev/null
+++ b/style.css
@@ -0,0 +1,3 @@
+select {
+  background-image: url("./chevron-down.svg");
+}
diff --git a/test/bundler/bundler_edgecase.test.ts b/test/bundler/bundler_edgecase.test.ts
index 07a340653e..f02d5b6a20 100644
--- a/test/bundler/bundler_edgecase.test.ts
+++ b/test/bundler/bundler_edgecase.test.ts
@@ -2358,3 +2358,27 @@ for (const backend of ["api", "cli"] as const) {
     });
   });
 }
+
+// Fixes #20278
+itBundled("edgecase/SvgEntryPointAndDataUrl", {
+  files: {
+    "/style.css": `select {
+  background-image: url("./chevron-down.svg");
+}`,
+    "/chevron-down.svg": `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down-icon lucide-chevron-down"><path d="m6 9 6 6 6-6"/></svg>`,
+  },
+  entryPoints: ["/style.css", "/chevron-down.svg"],
+  outdir: "/out",
+  onAfterBundle(api) {
+    // The CSS should inline the SVG as a data URL
+    api.expectFile("/out/style.css").toContain("background-image: url(");
+    api.expectFile("/out/style.css").toContain("data:image/svg+xml");
+
+    // The SVG should also be emitted as a separate file
+    api
+      .expectFile("/out/chevron-down.svg")
+      .toEqual(
+        `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down-icon lucide-chevron-down"><path d="m6 9 6 6 6-6"/></svg>`,
+      );
+  },
+});