Here’s what getComputedStyle returns:

[a] auto [b] minmax(min-content, 1fr) [b c d] repeat(2, [e] 40px) repeat(5, auto)

Here’s what the specification says it should return:

[a] 50px [b] 320px [b c d] repeat(2, [e] 40px) repeat(4, 0px) 50px