Upload Image without Submitting Form, Works on All Browsers

If you will have a look at my old post on Uploading files/image with Ajax & Jquery, without submitting a form, you will find that this implementation does not works with Internet Explorer (IE). IE does not supports FormData, so either we can flash or the hidden iframe solution. Now flash is not the best solution as it is not installed in many browsers (and many of the mobile devices does not supports flash). So, the hidden iframe solution is best in our case. Here is how we can implement it :

<!-- Change the target of the form to the hidden iframe -->
<form id="avatar_form" action="/welcome/upload" method="post" enctype="multipart/form-data" target="uploader_iframe">
<input id="avatar" type="file" name="avatar" size="30" />

<!-- Hidden iframe which will interact with the server, do not forget to give both name and id values same -->
<iframe id="uploader_iframe" name="uploader_iframe" style="display: none;"></iframe>

<!-- Just added to show the preview when the image is uploaded. -->
<img id="preview" src="preview.png" />

The above HTML code will do the job. I am using Ruby on Rails framewok. I am returning a text response (If I will sent a JSON response IE will ask to save the response). You can code the same in your languages like PHP, Java, Asp.net or any other. Here is my controller code.

class WelcomeController < ApplicationController

  def index

  def upload
    @user = User.create(avatar: params[:avatar])
    render text: {
      meta: {
        status: 200,
        msg: "OK"
      response: { avatar_url: @user.avatar }


We can write Javascript to show the preview of the uploaded image. What I have done might now be the best solution, but it works.

$(function() {
  $("#avatar").change(function() {
    $("#avatar_form").submit();  // Submits the form on change event, you consider this code as the start point of your request (to show loader)
    $("#uploader_iframe").unbind().load(function() {  // This block of code will execute when the response is sent from the server.
      result = JSON.parse($(this).contents().text());  // Content of the iframe will be the response sent from the server. Parse the response as the JSON object
      $("#preview").attr("src", result.response.avatar_url); 

Hope this reference will serve your purpose. Let me know in case of any doubts.

Ishank Gupta

Related articles

Our two bytes give the latest technology trends and information that gives you fair information about the subject.

How Long Does it Take to Build a Website?

To create recognition and identity of your product or service in the market there is a need for online presence. For online presence, you must star...

Top 10 Most Popular CMS Platforms for Website Development

There is no doubt about it: technology keeps changing, and it has the ability to make things easier for humans. Website development is the need of ...

How to Develop a React Micro Front-End App? A Complete Guide

It is no secret that disassembling the issue is the best way to address any software issue. There are several ways to achieve this, including by r...

We use cookies to deliver the best possible experience on our website. To learn more, visit our Privacy Policy. Please accept the cookies for optimal performance. Cookie Notice.

Accept Reject