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Sorry, I couldn't be available. Delete now works.
Thats strange. On Chromium Version 32.0.1700.107, Ubuntu 12.04, the same thing persists:


......Then Windows 7, IE 11, same ol' story. Here's a screenshot





This is immediately after clicking 'Yes'. Meanwhile, I moved to Windows 7, Firefox 28.0 to test it again. Still the same story
Ok.
I emptied my cache and reloaded the page. Still didn't work. I noticed this from my javascript console though:
1. On page load, you log an Array object to the console.
2. When i click the delete button icon, console.log says - "Empty string passed to getElementById()."
3. Which I click 'Yes', it still logs - 'Empty string passed to getElementById().' and there's a pause. I presume the pause is for sending the confirmation to the server. When the response comes, console.log shows 'error' and then prints an Object from your global.js called from API2_INIT() function. object.status is 405, object.statusText is 'method not allowed'.

Seems like something indeed is broken
Mozila firefox for ubuntu 27.0.1. After clicking delete, I get the confirmation popup then nothing happens after consenting