Because when you change the canvas width or height parameters, every properties of the attached context are reset to their default. From specs When the canvas element is created, and subsequently whenever the width and height attributes are set (whether to a new value or to the previous value), the bitmap and any associated contexts … Read more
My problem is: can I perform modification on DOM (so: the HTML document that is returned by server) before the page even starts displaying? Yes, javascript execution starts before the page is rendered the first time. The DOM Parser does notify mutation observers, so you can immediately strip elements as soon as they are added … Read more
Now I don’t know if this is a bug with Chrome or not but the grey border appears when it can’t find the image, the image url is broken or as in your case the src isn’t there. If you give the image a proper URL and the browser finds it then the border goes … Read more
Let’s rewrite it a bit, and start working from inside out. var mapCell = function (row) { return columns.map( function(column) { return { column : column, value : getColumnCell(row, column) } } ) } The function(column) part is essentially a function that takes a column as a parameter, and returns a new object with two … Read more
Real answers: http://cutycapt.sourceforge.net/ http://iecapt.sourceforge.net/ http://www.websitescreenshots.com/ http://www.princexml.com/ http://khtml2png.sourceforge.net/ http://linkpeek.com/ https://htmlcsstoimage.com/ (Uses Google Chrome) https://gofullpage.com/ – Full Page Screen Capture (Chrome extension) – see this superuser answer for more info (Don’t know of one to use Mozilla’s renderer, though.)