Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

Why are some files when opened -1 bytes?

Scott M. Sanders
Scott M. Sanders
more options

This is the byte count reported in the "opening" dialog.

In particular, I see it with a PHP script that dynamically generates files, and yes, these files contain data.

I see this a lot now in Firefox 8 but do not recall such in earlier versions.

This is the byte count reported in the "opening" dialog. In particular, I see it with a PHP script that dynamically generates files, and yes, these files contain data. I see this a lot now in Firefox 8 but do not recall such in earlier versions.

Novain'i Scott M. Sanders t@

All Replies (2)

Maxim
Maxim
more options

It happens when server response with no Content-Length: field. "Transfer-Encoding: chunked" provides option to download a attached file without known file size.

POST /tmp/Control/form HTTP/1.1
Host: 192.168.0.1

HTTP/1.1 200 OK
Date: Mon, 14 Nov 2011 10:21:21 GMT
Set-Cookie: fileDownloadToken=done; Path=/; Secure
Content-disposition: attachment; filename=ClientFile.exe
:
Content-Type: application/binary
Keep-Alive: timeout=4, max=100
Transfer-Encoding: chunked
Connection: Keep-Alive

It is known problem. See https://bugzilla.mozilla.org/show_bug.cgi?id=683258

Novain'i cor-el t@

Scott M. Sanders
Scott M. Sanders Tompon'ny fanontaniana
more options

Thank you for the info, especially the bug report. It seems to be more or less fixed in Firefox 9 (beta). It simply doesn't show any size now if unknown.