Dhaka, March 6 -- Twitter Inc is testing an "undo send" function that would give users a short time to withdraw a tweet before it is posted, the company confirmed on Friday.

App researcher Jane Manchun Wong, who discovers unannounced social media features by looking at the sites' code, tweeted an animation showing a tweet with a spelling error where an 'undo' button was available before a short-timer ran out, reports Reuters.

A Twitter spokeswoman said the feature was being tested as part of the company's exploration of how subscriptions could work on the platform.

She said Twitter would be testing and iterating possible paid-for features over time.

Twitter has said it is working on paid subscription models, which would reduce its dep...