When pasting wiki markup into the page editor pane the editor fails to recognize and convert the markup. For example, here is the markup for a simple 3 line table:

|| Heading 1 || Heading 2 ||
| Left 1     |  Right 1   |
| Left 2     |  Right 2   |

After pasting this block appears in the html as

<p>|| Heading 1 || Heading 2 ||<br/>| Left 1 | Right 1 |<br/>| Left 2 | Right 2 |</p>

I expected instead to get a real table:

Note that pasting wiki markup in this JIRA form does the right thing. Pasting into a Confluence edit pane does not.