Why is Chrome coloring my cookie red when I set it from the inspector?

Question

If I open the inspector for a page, go to the Application tab, scroll down to Cookies in the left-hand list, expand it, and click my domain, I get a list of cookies set on the domain. I can add new entries to the list and edit existing ones, setting and updating cookies stored for that domain.

After upgrading to Chrome 73 if I try and set a cookie the browser colors the text red and does not set or save the cookie. How do I continue setting cookies in Chrome 73?

Answer 1

Solved it by

1. search in chrome settings for flags by entering in the url field chrome://flags
2. search Partitioned cookies and set it to enable
3. Restart chrome (might need to refresh the page after the restart and it works like before did)

Answer 2

In Chrome 73 and later cookies must have a value for the Expires/Max-Age column or they will not be set. Double-click that field and enter 2100 to set a Expires time of 2100-01-01T00:00:00.000Z for your cookie.