If you have a Google account, you can save this code to your Google Drive.
Google will ask you to confirm Google Drive access.
Save file as:
If you have saved a file to Google Drive, you can open it here:
Click the "Try it" button to change the value of the formmethod and formaction attributes of the submit button in the form above.
Note: Click on the "Submit" button before and after you have clicked on the "Try it" button, to see the effect!