Selecting "" links with mechanize in ruby

Question

Notice all the whitespace on the screen? That is where the empty name "" links are on the pp page output. Anyone have any ideas on how i can click one?

page = agent.page.link_with(:text => '').click

That line works for me. I put both of the following html pages in my local apache server's htdocs directory(a publicly accessible directory):

page1.html:

<!DOCTYPE html>
<html>
  <head><title>Test</title></head>
  <body>
    <div><a href="/somesite.com/cat1.jpg">cat1</a></div>
    <div><a href="/page2.html"></a></div>
    <div><a href="/somesite.com/cat3.jpg"></a></div>
  </body>
</html>

page2.html:

<!DOCTYPE html>
<html>
  <head><title>Page2</title></head>
  <body>
    <div>hello</div>
  </body>
</html>

Then I started up my server, which meant that page1.html was accessible in my browser using the url:

http://localhost:8080/page1.html

Then I ran the ruby program:

require 'mechanize'

agent = Mechanize.new
agent.get('http://localhost:8080/page1.html')
pp agent.page

page = agent.page.link_with(:text => '').click
puts page.title

...and the output was:

#<Mechanize::Page
 {url #<URI::HTTP:0x00000100c8dc18 URL:http://localhost:8080/page1.html>}
 {meta_refresh}
 {title "Test"}
 {iframes}
 {frames}
 {links
  #<Mechanize::Page::Link "cat1" "/somesite.com/cat1.jpg">
  #<Mechanize::Page::Link "" "/page2.html">
  #<Mechanize::Page::Link "" "/somesite.com/cat3.jpg">}
 {forms}>

Page2

The pp page output looks the same as your output, and I was successfully able to click on a link that has no text--as evidenced by the output Page2.

The only problem with that code is that that link_with() returns only the first match. If I use links_with(), I get all the matching links:

require 'mechanize'

agent = Mechanize.new
agent.get('http://localhost:8080/page1.html')

links = agent.page.links_with(:text => '')
p links

--output:--
[#<Mechanize::Page::Link "" "/page2.html">
, #<Mechanize::Page::Link "" "/somesite.com/cat3.jpg">
]

I would like to see the actual html of the links you are having problems with.