builtin html template functions changes

_examples/file-server/file-server/main.go

@@ -94,7 +94,10 @@ func uploadView(ctx iris.Context) {
 	io.WriteString(h, strconv.FormatInt(now, 10))
 	token := fmt.Sprintf("%x", h.Sum(nil))
 
-	ctx.View("upload.html", token)
+	if err := ctx.View("upload.html", token); err != nil {
+		ctx.HTML("<h3>%s</h3>", err.Error())
+		return
+	}
 }
 
 func upload(ctx iris.Context) {

_examples/file-server/single-page-application/embedded-single-page-application/main.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"github.com/kataras/iris/v12"
-	"github.com/kataras/iris/v12/x/errors"
 )
 
 // $ go install github.com/go-bindata/go-bindata/v3/go-bindata@latest
@@ -28,7 +27,7 @@ func newApp() *iris.Application {
 	app.Get("/", func(ctx iris.Context) {
 		ctx.ViewData("Page", page)
 		if err := ctx.View("index.html"); err != nil {
-			errors.InvalidArgument.Err(ctx, err)
+			ctx.HTML("<h3>%s</h3>", err.Error())
 			return
 		}
 	})

_examples/file-server/spa-vue-router/main.go

@@ -27,6 +27,9 @@ func fullVueRouter() {
 }
 
 func index(ctx iris.Context) {
-	ctx.View("index.html")
+	if err := ctx.View("index.html"); err != nil {
+		ctx.HTML("<h3>%s</h3>", err.Error())
+		return
+	}
 }
 */

_examples/file-server/upload-file/main.go

@@ -31,7 +31,10 @@ func main() {
 		// ctx.ViewData("", token)
 		// or add second argument to the `View` method.
 		// Token will be passed as {{.}} in the template.
-		ctx.View("upload_form.html", token)
+		if err := ctx.View("upload_form.html", token); err != nil {
+			ctx.HTML("<h3>%s</h3>", err.Error())
+			return
+		}
 	})
 
 	/* Read before continue.

_examples/file-server/upload-files/main.go

@@ -32,7 +32,10 @@ func newApp() *iris.Application {
 		token := fmt.Sprintf("%x", h.Sum(nil))
 
 		// render the form with the token for any use you'd like.
-		ctx.View("upload_form.html", token)
+		if err := ctx.View("upload_form.html", token); err != nil {
+			ctx.HTML("<h3>%s</h3>", err.Error())
+			return
+		}
 	})
 
 	// Handle the post request from the upload_form.html to the server.