()
| 5210 | var iframe = global.document.createElement('iframe'); |
| 5211 | var tref, unloadRef; |
| 5212 | var unattach = function() { |
| 5213 | debug('unattach'); |
| 5214 | clearTimeout(tref); |
| 5215 | // Explorer had problems with that. |
| 5216 | try { |
| 5217 | iframe.onload = null; |
| 5218 | } catch (x) { |
| 5219 | // intentionally empty |
| 5220 | } |
| 5221 | iframe.onerror = null; |
| 5222 | }; |
| 5223 | var cleanup = function() { |
| 5224 | debug('cleanup'); |
| 5225 | if (iframe) { |