While I was trying to create a workaround for Chrome unsupporting blobs in IndexedDB I discovered that I could read an image through AJAX as an arraybuffer, store it in IndexedDB, extract it, conve...

I am trying to create a file using the File system API..i googled and i get a code function onFs(fs) { fs.root.getFile('log.txt', {create: true, exclusive: true}, function(fileEntry) { fileEnt...

I'm writing a web browser app (client-side) that downloads a huge amount of chunks from many locations and joins them to build a blob. Then that blob is saved to local filesystem as a common file. ...

when you download a file from MEGA service, a web page to display a download progress bar will appear. After the bar reaches 100%, your browser will notify users to save the file into a selected fo...

How might I learn the size of a file located in a local filesystem exposed through the HTML5 API? I'm expecting something along the lines of, fileSystem.root.getFile(path, { create: false }, fun...

Is it possible to use the HTML 5 File API (for example, this library: https://github.com/23/resumable.js ) in conjunction with the S3 multi-part upload feature? http://docs.aws.amazon.com/AmazonS3...

I used Filesystems API to write to a new file in a sandboxed storage of Chrome: preparing the FS: window.requestFileSystem = window.requestFileSystem || window.webkitRequestFileSystem; function ...

I am trying to use saveAs interface as explained here For the moment, I only worry about Google Chrome, and I uses latest Canary (Version 27.0.1429.0 canary) Qn1: the article says. The W3C Fil...

I am wondering if the current state of HTML5 makes it possible to edit local files. More precisely, I mean : The files are not served by a server (they are on file://), or in the worst case, a lo...

I am using HTML5 file api on mobile web app for image uploading utility. I am capturing image using camera and upload it to server. Problem is that if I capture portrait image the uploaded image au...

I'm working on a webapp and I'm trying to access directories using the filesystem API. I need to request a quota from the user before accessing the directories according to specification. I should ...

I have made an HTML 5 application that downloads a pdf file on my server, and writes it in the browser sandbox system. When I go to filesystem:myServerUrl/persistent, I see my pdf file with the cor...

I have some data in indexeddb files, and I'd like to allow my users to download that data to import into other applications. I can use Blobs to do this easily: var blob = new Blob(['herp!'], {typ...

I am developing a Chrome extension and I want to check if a file exists. I don't want to do anything with the file: I only want to check its existence. If I use a XMLHttpRequest it doesn't work, b...

So I'm basically doing this (simplified) ... var script = '...some JS code...', blob = blob = new Blob([script]), worker = []; for (var i=0; i<10; i++) { worker[i] = new Worker(URL.createOb...

I am trying on Firefox,IE 9,Chrome and Opera the code below ,but the onInitFs(fs) function doesn't get called.if I add '()' to onInitFs in the window.requestFileSystem(window.PERSISTENT, 1024*1024,...

I loaded a directory using file input and webkitdirectory as mentioned below. <input id="file_input" type="file" webkitdirectory directory /> After directory selected I can read file size ...

I am making an app that deals with songs being dragged to the app. When I use the file.size to get the size of the file it takes approx 1500ms (avg) to get this value. Is there any faster way? I un...