NOT_READABLE_ERR returns when using FileReader

[lth0721]

Hi,

I am study FileReader in HTML5.
And I followed tutorials in http://www.html5rocks.com/tutorials/file/dndfiles/.
Now, I am trying the "Reading files" example in this tutorial.
The problem is that, when i use a FileReader to read a image in my local files, NOT_READABLE_ERR returns.
1. when i try the tutorial online, it's ok and images are displayed.
2. i downloaded the tutorial page, and run it in my computer, NOT_READABLE_ERR returns.
3. all above are implemented in Chrome browser.
4. So, I opened the local page in FireFox, it worked.

Now, anybody can give me an idea about this case?

[markmurphy]

I too had this issue in Chrome.

I was testing sample code from the "file://" scheme (loading web page directly in browser from file system). The code was not working and returning a the NOT_READABLE_ERR error.

However, when I ran the exact same code, same location on file system, etc via apache, it worked.

I'm only guessing, but there must be a security violation in Chrome when trying to use FileReader in code where the window is from the "file://" scheme.

Firefox did not have this issue.

[zcorpan]

Yeah, Chrome is anal about file://. You need to enable some flag to relax the file:// restrictions in Chrome for testing.