polyfills

I have some code should be generated by the server: <a download="test.csv" href="data:text/plain;charset=utf-8;base64,w4FydsOtenTFsXLFkXTDvGvDtnJmw7p0w7Nnw6lwLg=="> teszt </a> It works with current chrome, firefox, opera. I'd like it to support MSIE11. Afaik msSaveBlob is the solution for that. Is there an existing js polyfill I could use, or should I write it? Okay I made a simple polyfill based on the code I found in SO answers and here . I tested it on MSIE11, it works. It does not support file download with XHR , just data URIs. I recommend to use the Content-Disposition response header

I have the following settings in the tsconfig.json . I added "es2017" to use Array.includes .: { "compilerOptions": { "lib": [ "es6", "es2017", "dom" ], "module": "es6", "target": "es5" } } Now, I realized, that I have to add import 'core-js/es7/array'; to the polyfills.ts , to use Array.includes also for the Internet Explorer 11. The target in the tsconfig.json is set to es5 , which does not have Array.includes . Why do I need to add the polyfill? TypeScript does not auto-polyfill code. The "official" reason from the relevant GitHub issue seems to be, as @RyanCavanaugh said : Having the

The webkitConvertPointFromPageToNode(in Node node, in WebKitPoint p) method is awesome; give it a DOM node and a point in page-coordinates (say, the mouse cursor position) and it will give a coordinate back to you in that node's local coordinate system. Unfortunately, it's currently only available in webkit . # Choose a node into which we'll map the mouse coordinates node = $('#subjectElement').get(0) handleMouseMove = (e) -> # Convert the mouse position to a Point mousePoint = new WebKitPoint(e.pageX, e.pageY) # Convert the mouse point into node coordinates using WebKit nodeCoords =