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....
I was studying Blobs, and I noticed that when you have an ArrayBuffer, you can easily convert this to a Blob as follows:  var dataView = new DataView(arrayBuffer); var blob = new Blob([dataView], { type: mimeString });   The question I have now is,...
I need to add a UTF-8 byte-order-mark to generated text data on client side. How do I do that?  Using new Blob(['\xEF\xBB\xBF' + content]) yields '"my data"',  of course.  Neither did '\uBBEF\x22BF' work (with...
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 an HTML Web page with a button that triggers a POST request when the user clicks on. When the request is done, the following code is fired:  window.open(fileUrl);   Everything works great in the browser, but when implement that inside of a Web...
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 have a difficult question to you, which i'm struggeling on for some time now.  I'm looking for a solution, where i can save a file to the users computer, without the local storage, because local storage has 5MB limit. I want the "Save t...
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...

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