Fix some small things

indexnow.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"context"
+	"io"
 	"log"
 	"net/http"
 
@@ -42,7 +43,7 @@ func (a *goBlog) indexNowEnabled() bool {
 }
 
 func (a *goBlog) serveIndexNow(w http.ResponseWriter, r *http.Request) {
-	w.Write([]byte(a.indexNowKey()))
+	_, _ = io.WriteString(w, a.indexNowKey())
 }
 
 func (a *goBlog) indexNow(url string) {

markdown.go

@@ -79,7 +79,7 @@ func (a *goBlog) initMarkdown() {
 
 func (a *goBlog) renderMarkdown(source string, absoluteLinks bool) (rendered []byte, err error) {
 	buffer := bufferpool.Get()
-	a.renderMarkdownToWriter(buffer, source, absoluteLinks)
+	err = a.renderMarkdownToWriter(buffer, source, absoluteLinks)
 	rendered = buffer.Bytes()
 	bufferpool.Put(buffer)
 	return

render.go

@@ -128,10 +128,13 @@ func (a *goBlog) renderNewWithStatusCode(w http.ResponseWriter, r *http.Request,
 	// Write status code
 	w.WriteHeader(statusCode)
 	// Render
-	minWriter := a.min.Get().Writer(contenttype.HTML, w)
-	defer minWriter.Close()
+	buf := bufferpool.Get()
+	minWriter := a.min.Get().Writer(contenttype.HTML, buf)
 	hb := newHtmlBuilder(minWriter)
 	f(hb, data)
+	_ = minWriter.Close()
+	_, _ = buf.WriteTo(w)
+	bufferpool.Put(buf)
 }
 
 func (a *goBlog) checkRenderData(r *http.Request, data *renderData) {