Unable to move chart into right end with only visible whitespace items about lightweight-charts

[SlicedSilver]

Thank you for the JSFiddle example which clearly shows the issue.
I'm adding the 'needs investigation' label because we will need to discuss internally whether a change to this behaviour should be the default and expected behaviour going forward, or whether we should put the new behaviour behind an option.

I can see a benefit to both approaches. Additionally, the fact that the behaviour is different for the past (left) direction compared to the future direction is unexpected.

[drgarlic]

One solution to this is to have all of the area that you want scrollable as whitespace data and the very last data a line data with a NaN value.

Like so:

const whitespaceStartDate = "1970-01-01";
const whitespaceEndDate = "2100-01-01";
const whitespaceDateDataset: ((WhitespaceData | SingleValueData) & Numbered)[] =
  new Array(
    getNumberOfDaysBetweenTwoDates(
      new Date(whitespaceStartDate),
      new Date(whitespaceEndDate),
    ),
  );
// Hack to be able to scroll freely
// Setting them all to NaN is much slower
for (let i = 0; i < whitespaceDateDataset.length; i++) {
  const date = new Date(whitespaceStartDate);
  date.setUTCDate(date.getUTCDay() + i);

  const number = date.valueOf() / ONE_DAY_IN_MS;
  const time = dateToString(date);

  if (i === whitespaceDateDataset.length - 1) {
    whitespaceDateDataset[i] = {
      number,
      time,
      value: NaN,
    };
  } else {
    whitespaceDateDataset[i] = {
      number,
      time,
    };
  }
}