Attempts to copy/paste an image from the clipboard into the Screenshots entry window for Live Feed on Chrome fail and return a JavaScript error: "Uncaught TypeError: Cannot assign to read only property"


Attempts to add a screenshot in Live Feed on Chrome are not successful. The image does not copy and returns a JavaScript error: "Uncaught TypeError: Cannot assign to read only property".

Steps to Reproduce


  1. In Chrome, log in to the instance.

  2. Navigate to Collaborate > Connect Chat > Live Feed.

  3. Open a feed.

  4. Press F12 to open the developer console in Chrome and select the Console tab to view the JavaScript console.

  5. Copy an image into your clipboard.

  6. In the Chrome window with Live Feed active, click the Image button under the "Share your thoughts" entry box.

  7. In the Screenshots pop-up window, click Paste an image here to move the focus to the window.

  8. Either press Ctrl+V or right-click and choose Paste.

    Note that the second option not always available.

    The Review log says "Cannot assign to read only property 'name' of object '#<File>'


After carefully considering the severity and frequency of the issue and the risk of attempting a fix, it has been decided to not address this issue in any current or future releases. We do not make this decision lightly, and we apologize for any inconvenience. If you have any questions regarding this problem, contact ServiceNow Customer Support.

Related Problem: PRB1020454