When trying to save a Confluence Page with an iframe that has an invalid 'Long Description' or 'URL', the following message is displayed:

Also, when previewing changes:

Cause:

• The 'URL' and 'Long Description' parameters don't allow spaces. They are URLs like indicated by their descriptions:
  • URL: "The URL of the document to show in the iframe"
  • Long Description: "A URL to a long description of the frame contents"

Steps to reproduce:

1. Create a new page with an iframe
2. set either URL or Long Description with a text with spaces
3. Try saving page: Results in error
4. Set URL to a text without spaces or a URL
5. Try saving page: Page Saved

Solution:

• Use a URL

Bug:

• The error message is unclear
• No verification is done on the iframe macro before saving.
• URL parameter is clearly a URL but 'Long Description' is unclear. Changing it to 'Long Description URL' might help.