VBSEO + page 'uses an invalid or unsupported form of compression'

[admin]

UPDATE: See 4th post for solution.
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A fresh install of vBSEO, on a vBulletin 3.x board with GZIP enabled in the admincp vB Option, on a Windows 2008 IIS 7 server, using Micronovae IIS Mod-Rewrite, generates this message:

Quote:

The page you are trying to view cannot be shown because it uses an invalid or unsupported form of compression.

Prior to vBSEO, the vB GZIP worked fine. It seems that either vBSEO adds it's own GZIP, or something about this vB + vBSEO combination don't properly cooperate with IIS and/or Micronovae software.

.htaccess + web.config had also previously been coexisting without issue.

Removing the .htaccess file completely seems to have resolved the compression issue.

Will watch for further problems.

Disabling GZIP entirely was also a solution, although undesirable.

[admin]

Actually.... it may have been related to the Zoints SEO plugin for vBulletin.
On a vB 3.8.x forum, Zoints seems to work fine in conjuction with vBSEO, with the Zoints rewrite turned off.
The other features still function.

On a vB 3.7.x forum, however, there was corruption in the compression output. Disabling Zoints entirely seems to have corrected the issue.

GZIP is enabled.
.htaccess restored, although some ruled purged or cleaned up.

Strange.

I may have to test settings within Zoints, to see if it's a specific feature that conflicts, or the whole plugin.

[admin]

Nope. Reintroducing a basic .htaccess barfed with this rule:

RewriteRule ^((urllist|sitemap).*\.(xml|txt)(\.gz)?)$ vbseo_sitemap/vbseo_getsitemap.php?sitemap=$1 [L]

More output compression errors thrown by the web browser.

More to test.

[admin]

This did the trick:

1. Disable gzip setting within vBulletin, as server has dynamic + static compression enabled in IIS.
2. Disable URL rewrite in Zoints (but feel free to leave enabled for other features)

3. And reset MySQL to flush its cache.