diff --git a/gateway/httpapi/ui_test.go b/gateway/httpapi/ui_test.go
index ee38c3b..52aae26 100644
--- a/gateway/httpapi/ui_test.go
+++ b/gateway/httpapi/ui_test.go
@@ -1,6 +1,9 @@
package httpapi
import (
+ "bytes"
+ "encoding/base64"
+ "image/png"
"net/http"
"strings"
"testing"
@@ -73,4 +76,50 @@ func TestHandleDashboard(t *testing.T) {
t.Fatal("dashboardHTML is empty: the //go:embed path is broken or the asset is empty")
}
})
+
+ // The favicon rides inline in the page rather than as a second embedded
+ // asset, so nothing but this test stands between a stray edit and a tab
+ // that silently falls back to the browser placeholder. Asserted by marker,
+ // never by the exact blob: the mark is regenerated from time to time.
+ t.Run("the page carries the favicon as an inline PNG data URI", func(t *testing.T) {
+ t.Parallel()
+
+ srv := newTestServer(&fakeRepo{}, "tok")
+ body := doRequest(t, srv, http.MethodGet, "/", "tok").Body.String()
+
+ const iconAttr = `rel="icon"`
+ if n := strings.Count(body, iconAttr); n != 1 {
+ t.Fatalf("the page has %d %s links, want exactly 1", n, iconAttr)
+ }
+
+ link := body[strings.Index(body, iconAttr):]
+ if end := strings.IndexByte(link, '>'); end >= 0 {
+ link = link[:end]
+ }
+
+ const marker = "data:image/png;base64,"
+ i := strings.Index(link, marker)
+ if i < 0 {
+ t.Fatalf("the icon href is not a %q URI: the favicon must stay inline so the dashboard remains a single self-contained asset", marker)
+ }
+ encoded := link[i+len(marker):]
+ end := strings.IndexByte(encoded, '"')
+ if end < 0 {
+ t.Fatal("the icon data URI has no closing quote")
+ }
+
+ raw, err := base64.StdEncoding.DecodeString(encoded[:end])
+ if err != nil {
+ t.Fatalf("decode the icon payload: %v", err)
+ }
+ // Decode in full, not just the header: a truncated blob still carries
+ // an intact IHDR, so DecodeConfig alone would wave a broken icon through.
+ img, err := png.Decode(bytes.NewReader(raw))
+ if err != nil {
+ t.Fatalf("the icon payload is not a valid PNG: %v", err)
+ }
+ if b := img.Bounds(); b.Dx() != 32 || b.Dy() != 32 {
+ t.Fatalf("icon is %dx%d, want 32x32", b.Dx(), b.Dy())
+ }
+ })
}
diff --git a/gateway/httpapi/web/index.html b/gateway/httpapi/web/index.html
index 5547096..cb201f6 100644
--- a/gateway/httpapi/web/index.html
+++ b/gateway/httpapi/web/index.html
@@ -5,6 +5,7 @@
+
pi5 · status