4 min article

JavaScript policy

Active content such as JavaScript, Flash, plug-ins, and form actions are no longer displayed in listings. If you include active content in your listings then they may not look as expected and buyer experience may be impaired.

Some forms of active content that can be used maliciously are still not allowed in listings or other eBay pages. You also aren't allowed to use Javacript to manipulate the standard functions of eBay listings, eBay Store pages, or your profile. For details on what is and isn't allowed on the site, see the guidelines below.

Any attempt to disguise the intention or function of a listing's source code when using JavaScript is a violation of eBay policy. Sellers may not manipulate or edit anything outside of the areas designated for member content.

Activity on eBay is required to:

  • Follow all applicable laws
  • Respect the rights of third parties
  • Follow the eBay User Agreement
  • Follow this eBay policy

If activity doesn’t meet these requirements, eBay may take action consistent with applicable laws and the eBay User Agreement, and may even be legally required to do so. Such actions may include, as an example only: administratively ending listings or cancelling transactions, hiding or lowering the placement of listings in search results, lowering seller rating, restricting buying or selling, forfeiture of fees, loss of buyer or seller protections, restricting access to member communication and rating tools, removing feedback, and account suspension.

What are the guidelines?

You can't use JavaScript that:

  • Calls remote scripts and pages automatically
  • Changes registry entries or otherwise writes to another person's computer hard drive
  • Creates automatic pop-ups except for links that open in a new window when clicked on
  • Is used to drop or read a cookie on any eBay page
  • Loads any binary program on another person's computer automatically
  • Launches a song or video when a listing is opened
  • Overwrites any area in the listing outside of the item description area
  • Manipulates areas outside the listing description, including changing fonts, colors, and backgrounds in areas such as eBay headers and footers
  • Posts to scripts on eBay automatically
  • Redirects the user from eBay to another web page, such as using the "replace" script

Additional information

If you try to use scripts that we disable, you'll get an error message that says "Disallowed JavaScript/HTML Syntax". This means you can't list the item, or the script will be disabled at run-time. Any other error message indicates a separate issue and isn't related to disabling HTML or JavaScript code.

Why does eBay have this policy?

To help keep our website working the way we designed it to, we don't allow using scripts that manipulate or change the way the site and its features operate, and we don’t render active content.

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