Some Technical Difficulties

• Pages can change even if URL does not

  • Frames
  • CGI Scripts with POST mechanism
  • Reloading Page
  • Resizing Page
  • Client Side JavaScript

• Pages can change due to:

  • Action within page (possibly a different frame)
  • Action from browser controls

• Netscape allows no (known to me) rigorous detection of page changes

Previous slide

Next slide

Back to first slide

View graphic version