René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Restyling a date axis with timestamp data changes axis type to numeric","articleBody":"Starting with Plotly.js 1.31.0, restyling a plot using timestamps instead of date strings turns the axis from a date axis to a numeric axis, even if the original data was in the same format, as can be seen in [this codepen](https://codepen.io/jdugge/pen/zPBQgp). In 1.30.0, this didn't happen.\r\n\r\n```\r\nvar trace1 = {\r\n  x: [1509583143188, 1510187943188], \r\n  y: [1, 2]\r\n};\r\n\r\nvar data = [ trace1];\r\n\r\nvar layout = {\r\n  title:'Line and Scatter Plot',\r\n  xaxis: { type: 'date'}\r\n};\r\n\r\nPlotly.newPlot('myDiv', data, layout);\r\n\r\n// Restyling with the same data turns the axis from date to numeric type\r\nPlotly.restyle('myDiv', {x: [[1509441408043, 1510046208043]], y: [[1, 2]]})\r\n```","author":{"url":"https://github.com/jdugge","@type":"Person","name":"jdugge"},"datePublished":"2017-11-06T19:56:58.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/2144/plotly.js/issues/2144"}