feat: add "Host" header

Signed-off-by: Hadi <112569860+anotherhadi@users.noreply.github.com>

internal/intercept/format.go

@@ -14,6 +14,9 @@ func FormatRawRequest(f *proxy.Flow) string {
 	r := f.Request
 	var sb strings.Builder
 	fmt.Fprintf(&sb, "%s %s %s\n", r.Method, r.URL.RequestURI(), r.Proto)
+	if r.URL.Host != "" {
+		fmt.Fprintf(&sb, "Host: %s\n", r.URL.Host)
+	}
 	for _, line := range util.SortedHeaderLines(r.Header) {
 		sb.WriteString(line)
 	}

internal/ui/intercept/helpers.go

@@ -28,8 +28,14 @@ func parseRawRequest(content string, req *intercept.PendingRequest) {
 	if parsed.Proto != "" {
 		r.Proto = parsed.Proto
 	}
+	if parsed.Host != "" {
+		r.URL.Host = parsed.Host
+	}
 	r.Header = make(http.Header)
 	for _, h := range parsed.Headers {
+		if strings.EqualFold(h.Key, "host") {
+			continue
+		}
 		r.Header.Set(h.Key, h.Value)
 	}
 	if parsed.Body != "" {