2.6.0 Line Chart xAxis Type Time ignores unitStepSize

[philipp-winterle]

Expected Behavior

The line chart xaxis should display date values with a difference of 5 minutes, when unitStepSize is 5 and unit is "minute".

Current Behavior

The line chart xaxis displays dates with a difference of 2 minutes

Possible Solution

Rollback to chart.js version 2.5.0

Steps to Reproduce (for bugs)

http://jsfiddle.net/hummal/m7btaLx8/1/ Chart.js Version 2.5.0
http://jsfiddle.net/hummal/m7btaLx8/2/ Chart.js Version 2.6.0
Example is with chart.js version 2.6.0. Switch to 2.5.0 to see this working. It is all the same but the chart.js version.

Context

I just dont want to have a filled xaxis bar

Environment

• Chart.js version: 2.6.0
• Browser name and version: Chrome 58
• Link to your project: not available

[etimberg]

Thanks for reporting this. To anyone interested, I am happy to look at a PR fixing this

[etimberg]

@hummal as a work-around set stepSize instead of unitStepSize. Looks like the backwards compatibility to the old property was lost.

[philipp-winterle]

@etimberg confirmed working stepSize in options ->scales -> xAxes -> time.
Did not find it in the documentation. Me confused.

unitStepSize = deprecated == true?

[etimberg]

I think that's likely what happened and then somehow the code to maintain backwards compatibility was lost. Docs were already corrected: http://www.chartjs.org/docs/master/axes/cartesian/time.html