639773 - progressEvent.loaded not loading huge file

Status: RESOLVED INVALID

(Core :: DOM: Core & HTML, defect)

Description

[Unni Vemanchery Mana]

User-Agent:       Mozilla/5.0 (Windows NT 5.1; rv:2.0b7) Gecko/20100101 Firefox/4.0b7
Build Identifier: FireFox 4.0b7

I am using HTML 5 for file upload application using FF 4.0b7.But progressEvent loaded method is not loading file size greater than 50 MB.It is loading maximum upto 50MB.Please confirm.
Thanks in advance.

Reproducible: Always

Steps to Reproduce:
1.Use  file element
2.load a file that is greater than 50 MB using this element
3.


Expected Results:  
It should load the file of any size.

Comment 1

[Boris Zbarsky [:bzbarsky]]

Please don't mess with the priority field.

This has noting to do with JS...  I also can't reproduce with a current build.  Please test a current nightly, not the ancient beta 7?  If you still see the problem there, can you attach the code you're using when the problem appears?

Comment 2

[Unni Vemanchery Mana]

I am using progress element to track the progress of a file upload.I am using Firefox 4.0 b7 version for doing this upload activity.Till 50 MB , it will upload correctly.But after 50 MB, it will not upload complete bytes, even though the total file size printing is correct.I shall try using  latest version of the Firefox nightly build and shall update the same.Thaks.

Comment 3

[Unni Vemanchery Mana]

Attachment: The file loaded completely when used Minefield 4.0b13pre(2011-03-09) version.

This time, as you said I changed to Minefield version(It is not a FireFox !!!) and tested the same. There are some improvements.This time it loaded some more bigger file.I have attached the image.

Comment 4

[Unni Vemanchery Mana]

Attachment: The file could not be loaded completely when used Minefield 4.0b13pre(2011-03-09) version for a file of 201 MB.

This screenshot for the file could not upload completely.

Comment 5

[Unni Vemanchery Mana]

Attachment: html file

Comment 6

[Unni Vemanchery Mana]

Attachment: javascript that is implemented the file upload

Please let me know if you need any other info.Thanks

Comment 7

[Boris Zbarsky [:bzbarsky]]

Could you please either point to or attach the full page needed to reproduce the problem?  The attached code clearly relies on some other library to actually do the work, for example.

Comment 8

[Unni Vemanchery Mana]

This implementation is using jWebSocket(http://jwebsocket.org/) API.You can download the server and client from their site.How to setup.Please follow these steps:
1.Download and install tomcat6.0+ version 
  --Unzip the tomcat zip to a folder.(e.g, apache-tomcat-6.0.29 folder name)
2.Install Java 1.6 (http://www.oracle.com/technetwork/java/javase/downloads/index.html)
 -- Just install(Follow the default instructions)
3.Unzip the websocket client zip file and copy the entire folder  to webapp folder of your tomcat installation.
4.Unzip the jWebSocket Server and goto bin folder and start it(jWebSocketServer.bat)
5.Now move the FileUpload.htm to demos\chat folder of your tomcat under the websocket client folder.
6.Access the URL like this:
  http://localhost:8080/jWebSocketClient-0.10/demos/chat/FileUpload.htm
7.Once screen loaded, you can enter some values and press Login.
8.Then select a bigger file and you can see this behaviour.   
Please let me know if you need further assistance on this.Thanks

Comment 9

[Unni Vemanchery Mana]

Sorry to forget to add one more information here.
Please move the .js file to res/js folder.

Comment 10

[Unni Vemanchery Mana]

Attachment: This is file will load file and monitor the progress.There is no need of setting up the environment.It can be directly run from a browser.

Comment 11

[Olli Pettay [:smaug][[e-mail]]]

A bit modified testcase coming. I need to verify this from the spec, but
if FileReader works like XMLHttpRequest, this is invalid.

Comment 12

[Olli Pettay [:smaug][[e-mail]]]

Attachment: updated testcase

Because the event called "progress" must not fire more often than every
50ms, the last progress event may not fire when 100% of a file is loaded.
For that information you should use "load" event.

Comment 13

[Olli Pettay [:smaug][[e-mail]]]

Actually, there is a spec problem here.

Comment 14

[Olli Pettay [:smaug][[e-mail]]]

Er, wrong bug.
The spec issue is not with FileReader but with XHR.

Comment 15

[Unni Vemanchery Mana]

I have corrected the code as per your input.But I have some clarifications.Normally when we say onloadend, it is expected that the file loading operation has been over.It fires onloadend event.
.But that is not really happening.When I use load and onloadend together , onloadend is not firing.I think onload is ovveriding the onloadend method.And if I use onloadend alone, it is not loading the entire size.This is bit confusing.Ideally, onloadend method should fire regardless of onload invoked or not and should load remaining bytes.Thanks for your co-operation.

Comment 16

[Unni Vemanchery Mana]

Attachment: test file for file upload

Comment 17

[Olli Pettay [:smaug][[e-mail]]]

In your testcase you set onploadend, not onloadend


If there is a problem with loadend event, please file a new bug about that
with a minimal testcase.
CC me to the bug.

Comment 18

[Unni Vemanchery Mana]

sorry it was a typo.