This method shouldn't be required on the server. Leave comments
relating to it in addListItem so JS & PHP can be kept in sync.
Change-Id: I849fac660faf6e750272c20776f96b9250f96b1b
Exceptions were being treated like API errors, resulting in the
incorrect message "Invalid response from server." being shown to the
user. Instead show the error message.
Bug: T252238
Change-Id: Idbaee7d2b710812673992d30a17a9b5fe856a5a6
This allows the unload handler to trigger on these links.
Depends-On: If52aa9d619eac08456874fc75c0f6e1adff01246
Bug: T244942
Change-Id: I9904e8af4a60b0f5e9a6e263cd4fd8e1e3fd1f98