Post preview breaks URLs with square brackets

Question

The markdown editor breaks URLs that have a [] in them in the post preview. For example:

Test link

the URL is:

http://www.example.com?array[]=item1

it works fine in the final result, though, so it's very minor.

Answer 1

I've noticed that the URL generator (highlight your URL, then hit the world-with-arrow icon) gets confused if the URL being highlighted has a close-square-bracket -- it thinks "aha someone already put the end of URL marker in for me, so I won't bother putting in another one", which prematurely ends the URL markup:

link text: text
url: http://blah/foo]bar

becomes

[text]bar[1]

[1]: http://blah/foo

Rather than what should be:

[text][1]

[1]: http://blah/foo\]bar

Answer 2

There may be minor variances in the javascript Markdown preview and the server-side Markdown rendering. This is unlikely to ever match 100%.