Robots.txt question

[rbai]

I notice something weird in Google robots. txt tester

I have this line

Disallow: display=

in my robots.text but whatever URL I give to test it says blocked and shows this line in robots.text

for example this line is to block pages like

http://www.abc.com/lamps/floorlamps?display=table

but if I test

http://www.abc.com/lamps/floorlamps or any page

it shows as blocked due to Disallow: display=

am I doing something wrong or Google is just acting strange? I don't think pages with no display= are blocked in real.

[Mobilio]

Yes - there is bug in your robots.txt. You should wrote some as:
Disallow: /?display=table
or:
Disallow: /?display=*