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Javascript Cookie with no expiration date Asked 11 years, 3 months ago Active 1 year, 8 months ago Viewed 167k times 157 Nope. Can’t be done. The ‘way’ of doing that is just making the expiration date be like 2020. share edit follow flag edited Jan 20 ’18 at 8:56 PyRulez 8.722 07 35 75 answered Feb 10’09 at 14:51 Paolo Bergantino 424k 76 500 431