Downloaded file size is 0 (Zero) byte or 404 error or Other file download error

[wzp]

When you directly download files, data goes directly from the server to your browser. When using eStore, the plugin acts as a middle man, to prevent buyers from directly accessing the file. Because not all hosting packages are the same, it is sometimes necessary to make adjustments to eStore.

Please keep the caching turned off for now.

You never answered my question of how big the zip file is.

[coolvibe]

it is 1.5 Mb zip file

[coolvibe]

a few more things I tried without success:

1. Changed the path of the downloadable file to sub domain.

2. Changed the path of the downloadable file to some external server.

No success.

No caching! and now it doesn’t even seem a server issue. need some help!

[wzp]

Please complete my contact form at: http://TheAssurer/contact

I will reply with a list of things about your site that I will need.

Right now, I’m riding a bus, using an iPad. In about 3 hours, I’ll be able to have a peek to see if I can determine the problem, using the information you provide.

[boagworld]

Thanks for the help with the debug files. They are now working

Here are the results where I attempt to download a file with W3 Total Cache turned on. The final downloaded file is Zero Bytes:

DOWNLOAD MANAGER DEBUG

[12/08/2011 9:16 AM] – Advisory : Log file reset.

---

[12/08/2011 9:18 AM] – Status : Unresolved DL file path = http://dl.dropbox.com/u/228092/book/Building%20websites%20for%20return%20on%20investment.zip

[12/08/2011 9:18 AM] – Status : Resolved DL file path = http://dl.dropbox.com/u/228092/book/Building%20websites%20for%20return%20on%20investment.zip

[12/08/2011 9:18 AM] – Advisory : No DL file path conversion performed on URL.

[12/08/2011 9:18 AM] – Status : Dispatching DL method = 1

[12/08/2011 9:18 AM] – SUCCESS : DL completed with no server-side errors detected.

[wzp]

I think you should exclude the download.php file from being cached.

[admin]

Do you have the “Enable HTTP (gzip) compression” option checked under the browser cache settings of the W3 Total Cache plugin? If you do try unchecking it.

[boagworld]

As I explained in the original video I posted (http://vimeo.com/33195023) I have both disabled gzip and excluded download.php from being cached. The problem still exists.

[admin]

Okay lets try to narrow it down to which setting option is doing this. Please do the following:

1. Go to the “General Settings” of the W3 Total Cache plugin then hit the “Restore Default Settings” to restore the settings to default (you can export your current settings before doing this).

2. Now, turn off all the following 5 types of caching and save the settings (also empty all cache too):

Page Cache

Minify

Database Cache

Object Cache

Browser Cache

3. The plugin will be running but there should be no caching so try a download and see what behavior you get.

4. If the download works fine then start to enable the individual cache settings starting with “Page Cache” and test the download each time.

Let me know which one breaks the download.

[boagworld]

Now that is strange. Even disabling all of the options listed above it still fails!

[admin]

Yeah thats very strange… lets take a look at the .htaccess file with W3 Total Cache active but all the individual caching inactive. Can you please post the content of the .htaccess file (from the site root) for the following two conditions?

– W3 Total Cache inactive (when the downloads work fine)

– With W3 Total Cache active but all caching turned off

[boagworld]

Ah okay. I was strictly right before. If I disable browser caching and page caching the download does work. Its if I have either of them turned on it won’t.

[admin]

Okay… lets look at the .htaccess file difference (for when it works and when it doesn’t) so we can see what directive in the .htaccess file is causing this issue.

[boagworld]

Thanks for all your help on this. It is very much appreciated. Okay here is the htaccess file when it is NOT working…

# BEGIN W3TC Browser Cache

<IfModule mod_deflate.c>

<IfModule mod_setenvif.c>

BrowserMatch ^Mozilla/4 gzip-only-text/html

BrowserMatch ^Mozilla/4.0[678] no-gzip

BrowserMatch bMSIE !no-gzip !gzip-only-text/html

BrowserMatch bMSI[E] !no-gzip !gzip-only-text/html

</IfModule>

<IfModule mod_headers.c>

Header append Vary User-Agent env=!dont-vary

</IfModule>

<IfModule mod_filter.c>

AddOutputFilterByType DEFLATE text/css application/x-javascript text/x-component text/html text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon

</IfModule>

</IfModule>

<FilesMatch “.(css|js|htc|CSS|JS|HTC)$”>

FileETag None

<IfModule mod_headers.c>

Header set X-Powered-By “W3 Total Cache/0.9.2.4”

</IfModule>

</FilesMatch>

<FilesMatch “.(html|htm|rtf|rtx|svg|svgz|txt|xsd|xsl|xml|HTML|HTM|RTF|RTX|SVG|SVGZ|TXT|XSD|XSL|XML)$”>

FileETag None

<IfModule mod_headers.c>

Header set X-Powered-By “W3 Total Cache/0.9.2.4”

</IfModule>

</FilesMatch>

<FilesMatch “.(asf|asx|wax|wmv|wmx|avi|bmp|class|divx|doc|docx|eot|exe|gif|gz|gzip|ico|jpg|jpeg|jpe|mdb|mid|midi|mov|qt|mp3|m4a|mp4|m4v|mpeg|mpg|mpe|mpp|otf|odb|odc|odf|odg|odp|ods|odt|ogg|pdf|png|pot|pps|ppt|pptx|ra|ram|svg|svgz|swf|tar|tif|tiff|ttf|ttc|wav|wma|wri|xla|xls|xlsx|xlt|xlw|zip|ASF|ASX|WAX|WMV|WMX|AVI|BMP|CLASS|DIVX|DOC|DOCX|EOT|EXE|GIF|GZ|GZIP|ICO|JPG|JPEG|JPE|MDB|MID|MIDI|MOV|QT|MP3|M4A|MP4|M4V|MPEG|MPG|MPE|MPP|OTF|ODB|ODC|ODF|ODG|ODP|ODS|ODT|OGG|PDF|PNG|POT|PPS|PPT|PPTX|RA|RAM|SVG|SVGZ|SWF|TAR|TIF|TIFF|TTF|TTC|WAV|WMA|WRI|XLA|XLS|XLSX|XLT|XLW|ZIP)$”>

FileETag None

<IfModule mod_headers.c>

Header set X-Powered-By “W3 Total Cache/0.9.2.4”

</IfModule>

</FilesMatch>

# END W3TC Browser Cache

# BEGIN W3TC Page Cache core

<IfModule mod_rewrite.c>

RewriteEngine On

RewriteBase /

RewriteRule ^(.*/)?w3tc_rewrite_test$ $1?w3tc_rewrite_test=1 [L]

RewriteCond %{HTTP:Accept-Encoding} gzip

RewriteRule .* – [E=W3TC_ENC:_gzip]

RewriteCond %{REQUEST_METHOD} !=POST

RewriteCond %{QUERY_STRING} =””

RewriteCond %{HTTP_HOST} =boagworld.com

RewriteCond %{REQUEST_URI} /$ [OR]

RewriteCond %{REQUEST_URI} (sitemap(_index)?.xml(.gz)?|[a-z0-9_-]+-sitemap([0-9]+)?.xml(.gz)?) [NC]

RewriteCond %{REQUEST_URI} !(/wp-admin/|/xmlrpc.php|/wp-(app|cron|login|register|mail).php|/feed/|wp-.*.php|index.php) [NC,OR]

RewriteCond %{REQUEST_URI} (wp-comments-popup.php|wp-links-opml.php|wp-locations.php) [NC]

RewriteCond %{HTTP_COOKIE} !(comment_author|wp-postpass|wordpress_[a-f0-9]+|wordpress_logged_in) [NC]

RewriteCond %{HTTP_USER_AGENT} !(W3 Total Cache/0.9.2.4) [NC]

RewriteCond “%{DOCUMENT_ROOT}/wp-content/w3tc/pgcache/%{REQUEST_URI}/_index%{ENV:W3TC_UA}%{ENV:W3TC_REF}%{ENV:W3TC_SSL}.html%{ENV:W3TC_ENC}” -f

RewriteRule .* “/wp-content/w3tc/pgcache/%{REQUEST_URI}/_index%{ENV:W3TC_UA}%{ENV:W3TC_REF}%{ENV:W3TC_SSL}.html%{ENV:W3TC_ENC}” [L]

</IfModule>

# END W3TC Page Cache core

# BEGIN WordPress

<IfModule mod_rewrite.c>

RewriteEngine On

RewriteBase /

RewriteRule ^index.php$ – [L]

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule . /index.php [L]

</IfModule>

# END WordPress

<FilesMatch “.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$”>

ExpiresActive On

ExpiresDefault “access plus 1 year”

</FilesMatch>

FileETag none

And here it is when it IS working…

---

# BEGIN WordPress

<IfModule mod_rewrite.c>

RewriteEngine On

RewriteBase /

RewriteRule ^index.php$ – [L]

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule . /index.php [L]

</IfModule>

# END WordPress

<FilesMatch “.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$”>

ExpiresActive On

ExpiresDefault “access plus 1 year”

</FilesMatch>

FileETag none

Hope that helps.

[admin]

Okay here is your issue….

See you mentioned that you are not using gzip compressing in the W3 Total Cache settings but your .htaccess file has them. See the following two blocks of

Here is one in the “Browser Cache” section

<IfModule mod_filter.c>

AddOutputFilterByType DEFLATE text/css application/x-javascript text/x-component text/html text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon

</IfModule>

Here is one inside the “Page Cache” section

RewriteCond %{HTTP:Accept-Encoding} gzip

RewriteRule .* - [E=W3TC_ENC:_gzip]

When you have the "Enable HTTP (gzip) compression" option unchecked in your browser cache settings of W3 Total Cache plugin it is not supposed to add the above codes to your .htaccess file. As long as those above mentioned code is present in the .htaccess file it will perform gzip compression.

Somehow the W3Total Cache plugin is messing up that in the .htaccess file (I would recommend you double check the W3 Total Cache settings)

[Author]

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