| <iframe | |
| id="my-iframe" | |
| frameborder="0" | |
| width="850" | |
| height="450" | |
| ></iframe> | |
| <script> | |
| var envVar = process.env.ENV_VAR; // get the value of the environment variable | |
| var iframe = document.getElementById("my-iframe"); | |
| iframe.src = envVar; // set the src attribute of the iframe tag | |
| </script> |