How do you set the name of a blob file in JavaScript when force downloading it through window.location?  function newFile(data) {     var json = JSON.stringify(data);     var blob = new Blob([json], {type: "octet/stream"});     var url  = w...
My page generates a URL like this: "blob:http%3A//localhost%3A8383/568233a1-8b13-48b3-84d5-cca045ae384f" How can I convert it to a normal address?  I'm using it as an <img>'s src attribute....
In my Vue app I receive a PDF as a blob, and want to display it using the browser's PDF viewer.  I convert it to a file, and generate an object url:  const blobFile = new File([blob], `my-file-name.pdf`, { type: 'application/pdf' }) thi...
I have a DataURL from a canvas that shows my webcam. I turn this dataURL into a blob using Matt's answer from here: How to convert dataURL to file object in javascript?  How do I convert this blob back into the same DataURL? I've spent a day...
Is there a function for appending blob data in JavaScript I currently use the following approach:   var bb = new Blob(["Hello world, 2"], { type: "text/plain" }); bb = new Blob([bb, ",another data"], { type: "text/plain...
I want to record user's microphone 5 seconds long segments and upload each to the server. I tried using MediaRecorder and I called start() and stop() methods at 5 seconds time interval, but when I concatenate these recordings there is a "drop...
I would like to display a video from a Javascript Blob/File object in the HTML5 video tag.  This code only works for small videos :   var reader = new FileReader(); reader.onload = function(e) {     document.getElementById("video").src=reader...
I am trying to download a file using AJAX call. I need to use AJAX call because I have to make a post request along with that I need to send some headers from the client. As Server API is not under our control, we don't have much choice other tha...
I want to open a PDF in a new tab in chrome browser (Chrome 56.0.2924.87, Ubuntu 14.04) using window.open(fileObjectURL) in javascript. I am creating the blob from base64 encoded data and do create an objectURL like this:  const fileObjectURL = URL.c...
I have a problem with BlobBuilder (Chrome11) I try to obtain an image from server with XHR request. Then i try to save it to local FS with BlobBuilder / FileWriter. Every example on the internet is about working with text/plain mime type and these ex...

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