[FIX] html_builder: error message for invalid URL

Author: emge-odoo

addons/html_builder/static/src/website_preview/website_builder_action.js

@@ -309,7 +309,14 @@ export class WebsiteBuilder extends Component {
             if (href && target !== "_blank" && !this.state.isEditing) {
                 if (isTopWindowURL(linkEl)) {
                     ev.preventDefault();
-                    browser.location.assign(href);
+                    try {
+                        browser.location.assign(href);
+                    } catch {
+                        this.notification.add(_t("%s is not a valid URL.", href), {
+                            title: _t("Invalid URL"),
+                            type: "danger",
+                        });
+                    }
                 } else if (
                     this.websiteContent.el.contentWindow.location.pathname !==
                     new URL(href).pathname

addons/html_editor/static/src/main/link/link_popover.js

@@ -194,6 +194,9 @@ export class LinkPopover extends Component {
         ) {
             url = "https://" + url;
         }
+        if (url && (url.startsWith("http:") || url.startsWith("https:"))) {
+            url = URL.parse(url) ? url : "";
+        }
         return url;
     }
     deduceUrl(text) {
@@ -228,7 +231,6 @@ export class LinkPopover extends Component {
             this.state.previewIcon = { type: "mimetype", value: mimetype };
             return;
         }
-
         try {
             url = new URL(this.state.url); // relative to absolute
         } catch {