When manually setting the steps query parameter:

http://gka.github.io/palettes/#colors=lightyellow,orange,deeppink,darkred|steps=11|bez=1|coL=1

The steps query parameter automatically updates to 7:

http://gka.github.io/palettes/#colors=lightyellow,orange,deeppink,darkred|steps=7|bez=1|coL=1

The provided step query parameter should be retained and applied. All other query parameters (i.e. colors, bez, and coL) work as expected.