chore: corrected some linter revealed code smells

pkg/cache/cache_test.go

@@ -272,7 +272,7 @@ func TestResponseToBytes(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			b := tt.response.Bytes()
-			if b == nil || len(b) == 0 {
+			if len(b) == 0 {
 				t.Error("Bytes() failed to convert")
 				return
 			}

pkg/middlewares/middlewares.go

@@ -58,7 +58,7 @@ type webSecurityWriter struct {
 }
 
 func (s webSecurityWriter) WriteHeader(code int) {
-	if s.wroteHeader == false {
+	if !s.wroteHeader {
 		s.w.Header().Set("Strict-Transport-Security", "max-age=63072000")
 		var inline string
 		if s.allowEvalInlineScript {
@@ -81,6 +81,7 @@ func (s webSecurityWriter) WriteHeader(code int) {
 		s.w.Header().Set("X-XSS-Protection", "1; mode=block")
 		s.w.Header().Set("Referrer-Policy", "strict-origin")
 		s.w.Header().Set("X-Content-Type-Options", "nosniff")
+		//lint:ignore SA4005 we need to assign true so that when the WriteHeader method will be used again, we won't rewrite security headers
 		s.wroteHeader = true
 	}
 	s.w.WriteHeader(code)

web/index.html

@@ -32,7 +32,7 @@
       <div class="navbar-brand">
         <div class="navbar-item">
           <a class="button is-primary is-rounded is-outlined" href="https://www.github.com/nicolaspernoud/Vestibule" target="_blank" rel="noopener noreferrer">
-            <span>4.5.15</span>
+            <span>4.5.16</span>
             <span class="icon">
               <svg
                 class="svg-inline--fa fa-github fa-w-16"