fix: fixed wrong extension detection in the handler.

handler.go

@@ -108,7 +108,7 @@ func (h *Handler) ServeHTTP(
 	urlPath := r.URL.Path
 	// Cleaning URL path to prevent injections.
 	urlPath = path.Clean(urlPath)
-	urlExt := path.Ext(urlPath)
+	//urlExt := path.Ext(urlPath)
 
 	filePath := filepath.Join(
 		filepath.FromSlash(h.sourcePath),
@@ -165,7 +165,8 @@ func (h *Handler) ServeHTTP(
 
 	// Setting before the code to let it change own
 	// content type?
-	contentType := mime.TypeByExtension(urlExt)
+	fileExt := filepath.Ext(filePath)
+	contentType := mime.TypeByExtension(fileExt)
 	w.Header().Set("Content-Type", contentType)
 	processedData := fileData
 	if shouldProcess {

src/index.htm.tpp

@@ -7,7 +7,10 @@
 
 {{
 	pp.print(
-		html.h1().body("This is the example page for THT")
+		html.h1().body("This is the example page for THT"),
+		html.p().body(
+			"Какое-то количество русского текста"
+		)
 	)
 	pp.print("some more shit")