561980 - FileReader throws error for large files

Status: RESOLVED DUPLICATE of bug 565039

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

Description

[Lars Svensby]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729)

When I drag and drop a large (~500 MB) file the FileReader throws an error (code 24), smaller files (~100MB) sometimes throw the exception and even smaller files (~30 MB) works every time.
Same problem with both readAsDataURL() and readAsBinaryString() method on FileReader.

Reproducible: Always

Steps to Reproduce:
1.Modified version (to reflect latest API changes) of https://developer.mozilla.org/en/Using_files_from_web_applications
2. Drag & Drop a large (~500 MB) file
3. Error is thrown
Actual Results:  
Error thrown

Expected Results:  
Read the file content into memory

...
var file = files[i]; 
				
var reader = new FileReader();
reader.onerror = function (e) {alert("Error: " + e.target.error.code);};
reader.onload = function() { alert("Finished"); };
reader.readAsBinaryString(file);

Comment 1

[Nickolay_Ponomarev]

Thanks for the report. This seems the same as bug 565039, though.