| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <body> | |
| <script> | |
| 'use strict'; | |
| // Create a blob and get its URL. | |
| const blob = new Blob(["TEST"], { type: "text/plain" }); | |
| const blob_url = URL.createObjectURL(blob); | |
| // Send the blob URL back to the opener. | |
| window.parent.postMessage({ type: "blobURL", message: blob_url }, "*"); | |
| </script> | |
| </body> |