DOC-3147: Refactor crossorigin examples in documentation to clarify attribute handling and provide options for omitting the attribute.

Author: kemister85

modules/ROOT/partials/configuration/crossorigin.adoc

@@ -21,26 +21,13 @@ The `+crossorigin+` option controls how {productname} handles cross-origin resou
 [source,js]
 ----
 tinymce.init({
-  selector: 'textarea',
-  crossorigin: (url, resourceType) => {
-    // Return 'anonymous' for all resources
-    return 'anonymous';
-  }
-});
-----
-
-=== Example: Conditional crossorigin attributes
-
-[source,js]
-----
-tinymce.init({
-  selector: 'textarea',
-  crossorigin: (url, resourceType) => {
-    if (url.startsWith('https://your-domain.com')) {
-      return ''; // No crossorigin for same-origin resources
-    }
-    return 'anonymous'; // Use anonymous for cross-origin resources
-  }
+  selector: "textarea",
+	crossorigin: (url, resourceType) => {
+  // Returning 'anonymous' or 'use-credentials' here would explicitly set the attribute
+	return 'anonymous';
+	// return 'use-credentials';
+	// return undefined; // Omit the 'crossorigin' attribute for all resources by returning undefined
+  },
 });
 ----
 
@@ -75,8 +62,10 @@ The crossorigin function can also be set globally using `+tinymce.overrideDefaul
 tinymce.overrideDefaults({
   ...tinymce.defaultOptions,  // Preserve existing defaults
   crossorigin: (url, resourceType) => {
-    // Your custom crossorigin logic
-    return 'anonymous';
+    // Returning 'anonymous' or 'use-credentials' here would explicitly set the attribute
+    // return 'anonymous';
+    // return 'use-credentials';
+    return undefined; // Omit the 'crossorigin' attribute for all resources by returning undefined
   }
 });
 ----