LPology/Simple-Ajax-Uploader
Simple Ajax Uploader
Simple-Ajax-Uploader is a dependency-free JavaScript library designed to handle asynchronous file transfers from the client side to a server. It enables background data transmission, allowing files and associated metadata to be uploaded without requiring a full page reload.
The library distinguishes itself through its broad compatibility, providing consistent functionality across both modern web browsers and older environments, including legacy versions of Internet Explorer. It achieves this by utilizing a combination of binary streaming for modern browsers and hidden iframe techniques for older systems, ensuring that file uploads and progress tracking remain functional regardless of the user's browser.
The project supports intuitive user interactions such as drag-and-drop file uploads and provides mechanisms for secure cross-domain data exchange. It also includes built-in support for real-time progress tracking and the bundling of additional form fields with file data to ensure all necessary information is processed in a single request.
Features
- AJAX File Uploaders - Provides a dependency-free script for sending files and form data to servers in the background without requiring a full page reload.
- Asynchronous Uploaders - Sends files to a server in the background without refreshing the page to keep the user interface responsive and fluid.
- Drag and Drop - Captures native browser drag-and-drop events on specific DOM elements to extract file objects for immediate background processing.
- Binary Stream Uploads - Transfers file data as raw binary streams using asynchronous requests to ensure the main page remains responsive during the upload.
- Multipart Form Uploads - Packages files and additional metadata into a single standard request body to ensure server-side compatibility with traditional form handlers.
- Upload Progress Tracking - Tracks the status of file transfers in real time using visual indicators that remain consistent and functional across all modern and legacy web browser environments.
- Bidirectional Progress Tracking - Hooks into low-level browser progress events to calculate and report real-time transfer status for visual feedback components.
- Drag-and-Drop File Upload - Allows users to initiate file transfers by dragging items from their local computer directly onto specific elements on a webpage.
- Cross-Browser Upload Interfaces - Manages file transfers that maintain consistent functionality across diverse browser environments including older versions of Internet Explorer.
