Support

I have become pretty familiar with the Akeeba Admin Tools PRO .htaccess maker.

Currently I am running a default Joomla .htaccess to continue my map developmant with CesiumJS

WHEN I try to us this test page
http://steamboat3d.com/index.php/d
which loads the Cesium Viewer from my local installation, and then load a .kmz file to bring in the markers,
I get a 404 error USING THE FOLLOWING .htaccess
---
### ===========================================================================
### Security Enhanced & Highly Optimized .htaccess File for Joomla!
### automatically generated by Admin Tools 5.1.2 on 2018-10-19 17:29:46 UTC
### Auto-detected Apache version: 2.5 (best guess)
### ===========================================================================
###
### The contents of this file are based on the same author's work "Master
### .htaccess".
###
### Admin Tools is Free Software, distributed under the terms of the GNU
### General Public License version 3 or, at your option, any later version
### published by the Free Software Foundation.
###
### !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! IMPORTANT !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
### !! !!
### !! If you get an Internal Server Error 500 or a blank page when trying !!
### !! to access your site, remove this file and try tweaking its settings !!
### !! in the back-end of the Admin Tools component. !!
### !! !!
### !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
###

##### RewriteEngine enabled - BEGIN
RewriteEngine On
##### RewriteEngine enabled - END

##### RewriteBase set - BEGIN
RewriteBase /
##### RewriteBase set - END

##### File execution order -- BEGIN
DirectoryIndex index.php index.html
##### File execution order -- END

##### No directory listings -- BEGIN
IndexIgnore *
Options -Indexes
##### No directory listings -- END

##### Optimal default expiration time - BEGIN
<IfModule mod_expires.c>
# Enable expiration control
ExpiresActive On

# CSS and JS expiration: 1 week after request
ExpiresByType text/css "now plus 1 week"
ExpiresByType application/javascript "now plus 1 week"
ExpiresByType application/x-javascript "now plus 1 week"

# Image files expiration: 1 month after request
ExpiresByType image/bmp "now plus 1 month"
ExpiresByType image/gif "now plus 1 month"
ExpiresByType image/jpeg "now plus 1 month"
ExpiresByType image/jp2 "now plus 1 month"
ExpiresByType image/pipeg "now plus 1 month"
ExpiresByType image/png "now plus 1 month"
ExpiresByType image/svg+xml "now plus 1 month"
ExpiresByType image/tiff "now plus 1 month"
ExpiresByType image/vnd.microsoft.icon "now plus 1 month"
ExpiresByType image/x-icon "now plus 1 month"
ExpiresByType image/ico "now plus 1 month"
ExpiresByType image/icon "now plus 1 month"
ExpiresByType text/ico "now plus 1 month"
ExpiresByType application/ico "now plus 1 month"
ExpiresByType image/vnd.wap.wbmp "now plus 1 month"
ExpiresByType application/vnd.wap.wbxml "now plus 1 month"
ExpiresByType application/smil "now plus 1 month"

# Font files expiration: 1 week after request
ExpiresByType application/vnd.ms-fontobject "now plus 1 week"
ExpiresByType application/x-font-ttf "now plus 1 week"
ExpiresByType application/x-font-opentype "now plus 1 week"
ExpiresByType application/x-font-woff "now plus 1 week"
ExpiresByType font/woff2 "now plus 1 week"
ExpiresByType image/svg+xml "now plus 1 week"

# Audio files expiration: 1 month after request
ExpiresByType audio/ogg "now plus 1 month"
ExpiresByType application/ogg "now plus 1 month"
ExpiresByType audio/basic "now plus 1 month"
ExpiresByType audio/mid "now plus 1 month"
ExpiresByType audio/midi "now plus 1 month"
ExpiresByType audio/mpeg "now plus 1 month"
ExpiresByType audio/mp3 "now plus 1 month"
ExpiresByType audio/x-aiff "now plus 1 month"
ExpiresByType audio/x-mpegurl "now plus 1 month"
ExpiresByType audio/x-pn-realaudio "now plus 1 month"
ExpiresByType audio/x-wav "now plus 1 month"

# Movie files expiration: 1 month after request
ExpiresByType application/x-shockwave-flash "now plus 1 month"
ExpiresByType x-world/x-vrml "now plus 1 month"
ExpiresByType video/x-msvideo "now plus 1 month"
ExpiresByType video/mpeg "now plus 1 month"
ExpiresByType video/mp4 "now plus 1 month"
ExpiresByType video/quicktime "now plus 1 month"
ExpiresByType video/x-la-asf "now plus 1 month"
ExpiresByType video/x-ms-asf "now plus 1 month"
</IfModule>
##### Optimal default expiration time - END

##### Common hacking tools and bandwidth hoggers block -- BEGIN
SetEnvIf user-agent "WebBandit" stayout=1
SetEnvIf user-agent "webbandit" stayout=1
SetEnvIf user-agent "Acunetix" stayout=1
SetEnvIf user-agent "binlar" stayout=1
SetEnvIf user-agent "BlackWidow" stayout=1
SetEnvIf user-agent "Bolt 0" stayout=1
SetEnvIf user-agent "Bot mailto:[email protected]" stayout=1
SetEnvIf user-agent "BOT for JCE" stayout=1
SetEnvIf user-agent "casper" stayout=1
SetEnvIf user-agent "checkprivacy" stayout=1
SetEnvIf user-agent "ChinaClaw" stayout=1
SetEnvIf user-agent "clshttp" stayout=1
SetEnvIf user-agent "cmsworldmap" stayout=1
SetEnvIf user-agent "comodo" stayout=1
SetEnvIf user-agent "Custo" stayout=1
SetEnvIf user-agent "Default Browser 0" stayout=1
SetEnvIf user-agent "diavol" stayout=1
SetEnvIf user-agent "DIIbot" stayout=1
SetEnvIf user-agent "DISCo" stayout=1
SetEnvIf user-agent "dotbot" stayout=1
SetEnvIf user-agent "Download Demon" stayout=1
SetEnvIf user-agent "eCatch" stayout=1
SetEnvIf user-agent "EirGrabber" stayout=1
SetEnvIf user-agent "EmailCollector" stayout=1
SetEnvIf user-agent "EmailSiphon" stayout=1
SetEnvIf user-agent "EmailWolf" stayout=1
SetEnvIf user-agent "Express WebPictures" stayout=1
SetEnvIf user-agent "extract" stayout=1
SetEnvIf user-agent "ExtractorPro" stayout=1
SetEnvIf user-agent "EyeNetIE" stayout=1
SetEnvIf user-agent "feedfinder" stayout=1
SetEnvIf user-agent "FHscan" stayout=1
SetEnvIf user-agent "FlashGet" stayout=1
SetEnvIf user-agent "flicky" stayout=1
SetEnvIf user-agent "GetRight" stayout=1
SetEnvIf user-agent "GetWeb!" stayout=1
SetEnvIf user-agent "Go-Ahead-Got-It" stayout=1
SetEnvIf user-agent "Go!Zilla" stayout=1
SetEnvIf user-agent "grab" stayout=1
SetEnvIf user-agent "GrabNet" stayout=1
SetEnvIf user-agent "Grafula" stayout=1
SetEnvIf user-agent "harvest" stayout=1
SetEnvIf user-agent "HMView" stayout=1
SetEnvIf user-agent "ia_archiver" stayout=1
SetEnvIf user-agent "Image Stripper" stayout=1
SetEnvIf user-agent "Image Sucker" stayout=1
SetEnvIf user-agent "InterGET" stayout=1
SetEnvIf user-agent "Internet Ninja" stayout=1
SetEnvIf user-agent "InternetSeer.com" stayout=1
SetEnvIf user-agent "jakarta" stayout=1
SetEnvIf user-agent "Java" stayout=1
SetEnvIf user-agent "JetCar" stayout=1
SetEnvIf user-agent "JOC Web Spider" stayout=1
SetEnvIf user-agent "kmccrew" stayout=1
SetEnvIf user-agent "larbin" stayout=1
SetEnvIf user-agent "LeechFTP" stayout=1
SetEnvIf user-agent "libwww" stayout=1
SetEnvIf user-agent "Mass Downloader" stayout=1
SetEnvIf user-agent "Maxthon$" stayout=1
SetEnvIf user-agent "microsoft.url" stayout=1
SetEnvIf user-agent "MIDown tool" stayout=1
SetEnvIf user-agent "miner" stayout=1
SetEnvIf user-agent "Mister PiX" stayout=1
SetEnvIf user-agent "NEWT" stayout=1
SetEnvIf user-agent "MSFrontPage" stayout=1
SetEnvIf user-agent "Navroad" stayout=1
SetEnvIf user-agent "NearSite" stayout=1
SetEnvIf user-agent "Net Vampire" stayout=1
SetEnvIf user-agent "NetAnts" stayout=1
SetEnvIf user-agent "NetSpider" stayout=1
SetEnvIf user-agent "NetZIP" stayout=1
SetEnvIf user-agent "nutch" stayout=1
SetEnvIf user-agent "Octopus" stayout=1
SetEnvIf user-agent "Offline Explorer" stayout=1
SetEnvIf user-agent "Offline Navigator" stayout=1
SetEnvIf user-agent "PageGrabber" stayout=1
SetEnvIf user-agent "Papa Foto" stayout=1
SetEnvIf user-agent "pavuk" stayout=1
SetEnvIf user-agent "pcBrowser" stayout=1
SetEnvIf user-agent "PeoplePal" stayout=1
SetEnvIf user-agent "planetwork" stayout=1
SetEnvIf user-agent "psbot" stayout=1
SetEnvIf user-agent "purebot" stayout=1
SetEnvIf user-agent "pycurl" stayout=1
SetEnvIf user-agent "RealDownload" stayout=1
SetEnvIf user-agent "ReGet" stayout=1
SetEnvIf user-agent "Rippers 0" stayout=1
SetEnvIf user-agent "SeaMonkey$" stayout=1
SetEnvIf user-agent "sitecheck.internetseer.com" stayout=1
SetEnvIf user-agent "SiteSnagger" stayout=1
SetEnvIf user-agent "skygrid" stayout=1
SetEnvIf user-agent "SmartDownload" stayout=1
SetEnvIf user-agent "sucker" stayout=1
SetEnvIf user-agent "SuperBot" stayout=1
SetEnvIf user-agent "SuperHTTP" stayout=1
SetEnvIf user-agent "Surfbot" stayout=1
SetEnvIf user-agent "tAkeOut" stayout=1
SetEnvIf user-agent "Teleport Pro" stayout=1
SetEnvIf user-agent "Toata dragostea mea pentru diavola" stayout=1
SetEnvIf user-agent "turnit" stayout=1
SetEnvIf user-agent "vikspider" stayout=1
SetEnvIf user-agent "VoidEYE" stayout=1
SetEnvIf user-agent "Web Image Collector" stayout=1
SetEnvIf user-agent "Web Sucker" stayout=1
SetEnvIf user-agent "WebAuto" stayout=1
SetEnvIf user-agent "WebCopier" stayout=1
SetEnvIf user-agent "WebFetch" stayout=1
SetEnvIf user-agent "WebGo IS" stayout=1
SetEnvIf user-agent "WebLeacher" stayout=1
SetEnvIf user-agent "WebReaper" stayout=1
SetEnvIf user-agent "WebSauger" stayout=1
SetEnvIf user-agent "Website eXtractor" stayout=1
SetEnvIf user-agent "Website Quester" stayout=1
SetEnvIf user-agent "WebStripper" stayout=1
SetEnvIf user-agent "WebWhacker" stayout=1
SetEnvIf user-agent "WebZIP" stayout=1
SetEnvIf user-agent "Widow" stayout=1
SetEnvIf user-agent "WWW-Mechanize" stayout=1
SetEnvIf user-agent "WWWOFFLE" stayout=1
SetEnvIf user-agent "Xaldon WebSpider" stayout=1
SetEnvIf user-agent "Yandex" stayout=1
SetEnvIf user-agent "Zeus" stayout=1
SetEnvIf user-agent "zmeu" stayout=1
SetEnvIf user-agent "CazoodleBot" stayout=1
SetEnvIf user-agent "discobot" stayout=1
SetEnvIf user-agent "ecxi" stayout=1
SetEnvIf user-agent "GT::WWW" stayout=1
SetEnvIf user-agent "heritrix" stayout=1
SetEnvIf user-agent "HTTP::Lite" stayout=1
SetEnvIf user-agent "HTTrack" stayout=1
SetEnvIf user-agent "ia_archiver" stayout=1
SetEnvIf user-agent "id-search" stayout=1
SetEnvIf user-agent "id-search.org" stayout=1
SetEnvIf user-agent "IDBot" stayout=1
SetEnvIf user-agent "Indy Library" stayout=1
SetEnvIf user-agent "IRLbot" stayout=1
SetEnvIf user-agent "ISC Systems iRc Search 2.1" stayout=1
SetEnvIf user-agent "LinksManager.com_bot" stayout=1
SetEnvIf user-agent "linkwalker" stayout=1
SetEnvIf user-agent "lwp-trivial" stayout=1
SetEnvIf user-agent "MFC_Tear_Sample" stayout=1
SetEnvIf user-agent "Microsoft URL Control" stayout=1
SetEnvIf user-agent "Missigua Locator" stayout=1
SetEnvIf user-agent "panscient.com" stayout=1
SetEnvIf user-agent "PECL::HTTP" stayout=1
SetEnvIf user-agent "PHPCrawl" stayout=1
SetEnvIf user-agent "PleaseCrawl" stayout=1
SetEnvIf user-agent "SBIder" stayout=1
SetEnvIf user-agent "Snoopy" stayout=1
SetEnvIf user-agent "Steeler" stayout=1
SetEnvIf user-agent "URI::Fetch" stayout=1
SetEnvIf user-agent "urllib" stayout=1
SetEnvIf user-agent "Web Sucker" stayout=1
SetEnvIf user-agent "webalta" stayout=1
SetEnvIf user-agent "WebCollage" stayout=1
SetEnvIf user-agent "Wells Search II" stayout=1
SetEnvIf user-agent "WEP Search" stayout=1
SetEnvIf user-agent "zermelo" stayout=1
SetEnvIf user-agent "ZyBorg" stayout=1
SetEnvIf user-agent "Indy Library" stayout=1
SetEnvIf user-agent "libwww-perl" stayout=1
SetEnvIf user-agent "Go!Zilla" stayout=1
SetEnvIf user-agent "TurnitinBot" stayout=1
<IfModule !mod_authz_core.c>
deny from env=stayout
</IfModule>
<IfModule mod_authz_core.c>
<RequireAll>
Require all granted
Require not env stayout
</RequireAll>
</IfModule>
##### Common hacking tools and bandwidth hoggers block -- END

##### Automatic compression of resources -- BEGIN
<IfModule mod_filter.c>
AddOutputFilterByType DEFLATE text/plain text/xml text/css application/xml application/xhtml+xml application/rss+xml application/javascript application/x-javascript image/svg+xml
</IfModule>

<IfModule mod_gzip.c>
mod_gzip_on Yes
mod_gzip_dechunk Yes
mod_gzip_keep_workfiles No
mod_gzip_can_negotiate Yes
mod_gzip_add_header_count Yes
mod_gzip_send_vary Yes
mod_gzip_min_http 1000
mod_gzip_minimum_file_size 300
mod_gzip_maximum_file_size 512000
mod_gzip_maximum_inmem_size 60000
mod_gzip_handle_methods GET
mod_gzip_item_include file \.(html?|txt|css|js|php|pl|xml|rb|py|svg|scgz)$
mod_gzip_item_include mime ^text/plain$
mod_gzip_item_include mime ^text/xml$
mod_gzip_item_include mime ^text/css$
mod_gzip_item_include mime ^application/xml$
mod_gzip_item_include mime ^application/xhtml+xml$
mod_gzip_item_include mime ^application/rss+xml$
mod_gzip_item_include mime ^application/javascript$
mod_gzip_item_include mime ^application/x-javascript$
mod_gzip_item_include mime ^image/svg+xml$
mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
mod_gzip_item_include handler ^cgi-script$
mod_gzip_item_include handler ^server-status$
mod_gzip_item_include handler ^server-info$
mod_gzip_item_include handler ^application/x-httpd-php
mod_gzip_item_exclude mime ^image/.*
</ifmodule>
##### Automatic compression of resources -- END
## Force GZip compression for mangled Accept-Encoding headers
<IfModule mod_setenvif.c>
<IfModule mod_headers.c>
SetEnvIfNoCase ^(Accept-EncodXng|X-cept-Encoding|X{15}|~{15}|-{15})$ ^((gzip|deflate)\s*,?\s*)+|[X~-]{4,13}$ HAVE_Accept-Encoding
RequestHeader append Accept-Encoding "gzip,deflate" env=HAVE_Accept-Encoding
</IfModule>
</IfModule>
##### Redirect www to non-www -- BEGIN
# HTTP
RewriteCond %{HTTPS} !=on [OR]
RewriteCond %{HTTP:X-Forwarded-Proto} =http
RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
# HTTPS
RewriteCond %{HTTPS} =on [OR]
RewriteCond %{HTTP:X-Forwarded-Proto} !=http
RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]
##### Redirect www to non-www -- END

##### Rewrite rules to block out some common exploits -- BEGIN
RewriteCond %{QUERY_STRING} proc/self/environ [OR]
RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|\%3D) [OR]
RewriteCond %{QUERY_STRING} base64_(en|de)code\(.*\) [OR]
RewriteCond %{QUERY_STRING} (<|%3C).*script.*(>|%3E) [NC,OR]
RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\[0-9A-Z]{0,2}) [OR]
RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\[0-9A-Z]{0,2})
RewriteRule .* index.php [F]
##### Rewrite rules to block out some common exploits -- END
##### File injection protection -- BEGIN
RewriteCond %{REQUEST_METHOD} GET
RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=http[s]?:// [OR]
RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=(\.\.//?)+ [OR]
RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=/([a-z0-9_.]//?)+ [NC]
RewriteRule .* - [F]
##### File injection protection -- END

##### Advanced server protection rules exceptions -- BEGIN
RewriteRule ^administrator\/components\/com_akeeba\/restore\.php$ - [L]
RewriteRule ^administrator\/components\/com_admintools\/restore\.php$ - [L]
RewriteRule ^administrator\/components\/com_joomlaupdate\/restore\.php$ - [L]
RewriteRule ^Cesium\/Apps\/CesiumViewer\/\*\.\*$ - [L]
RewriteRule ^includes\/\*\.\*$ - [L]
RewriteCond %{REQUEST_FILENAME} !(\.php)$
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^includes\/mobilefusionrecycling/ - [L]
RewriteRule ^templates\/focus2/ - [L]
RewriteRule ^Cesium/ - [L]
RewriteRule ^includes/ - [L]
##### Advanced server protection rules exceptions -- END

##### Advanced server protection -- BEGIN

## Disable PHP Easter Eggs
RewriteCond %{QUERY_STRING} \=PHP[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12} [NC]
RewriteRule .* - [F]
#### Back-end protection
RewriteRule ^administrator/?$ - [L]
RewriteRule ^administrator/index\.(php|html?)$ - [L]
RewriteRule ^administrator/(components|modules|templates|images|plugins)/.*\.(kmz|html|kml|jpe|jpg|jpeg|jp2|jpe2|png|gif|bmp|css|js|swf|html|mpg|mp3|mpeg|mp4|avi|wav|ogg|ogv|xls|xlsx|doc|docx|ppt|pptx|zip|rar|pdf|xps|txt|7z|svg|odt|ods|odp|flv|mov|htm|ttf|woff|woff2|eot|JPG|JPEG|PNG|GIF|CSS|JS|TTF|WOFF|WOFF2|EOT)$ - [L]
RewriteRule ^administrator/ - [F]
#### Front-end protection
## Allow limited access for certain directories with client-accessible content
RewriteRule ^(components|modules|templates|images|plugins|media|libraries|media/jui/fonts)/.*\.(kmz|jpe|jpg|jpeg|jp2|jpe2|png|gif|bmp|css|js|swf|html|mpg|mp3|mpeg|mp4|avi|wav|ogg|ogv|xls|xlsx|doc|docx|ppt|pptx|zip|rar|pdf|xps|txt|7z|svg|odt|ods|odp|flv|mov|ico|htm|ttf|woff|woff2|eot|JPG|JPEG|PNG|GIF|CSS|JS|TTF|WOFF|WOFF2|EOT)$ - [L]
RewriteRule ^(components|modules|templates|images|plugins|media|libraries|media/jui/fonts)/ - [F]
## Disallow front-end access for certain Joomla! system directories (unless access to their files is allowed above)
RewriteRule ^includes/js/ - [L]
RewriteRule ^(cache|includes|language|logs|log|tmp)/ - [F]
RewriteRule ^(configuration\.php|CONTRIBUTING\.md|htaccess\.txt|joomla\.xml|LICENSE\.txt|phpunit\.xml|README\.txt|web\.config\.txt) - [F]

## Explicitly allow access to the site's index.php main entry point file
RewriteRule ^index.php(/.*){0,1}$ - [L]
## Explicitly allow access to the site's robots.txt file
RewriteRule ^robots.txt$ - [L]

## Disallow access to all other PHP files throughout the site, unless they are explicitly allowed
RewriteCond %{REQUEST_FILENAME} (\.php)$
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule (.*\.php)$ - [F]
## Disallow access to htaccess.txt, php.ini, .user.ini and configuration.php-dist
RewriteRule ^(htaccess\.txt|configuration\.php-dist|php\.ini|\.user\.ini)$ - [F]
# Disallow access to all other front-end folders
RewriteCond %{REQUEST_FILENAME} -d
RewriteCond %{REQUEST_URI} !^/
RewriteRule .* - [F]

# Disallow access to all other front-end files
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule !^index.php$ - [F]
## Protect against clickjacking
<IfModule mod_headers.c>

Header always append X-Frame-Options SAMEORIGIN

# The `X-Frame-Options` response header should be send only for
# HTML documents and not for the other resources.

<FilesMatch "\.(appcache|atom|bbaw|bmp|crx|css|cur|eot|f4[abpv]|flv|geojson|gif|htc|ico|jpe?g|js|json(ld)?|m4[av]|manifest|map|mp4|oex|og[agv]|opus|otf|pdf|png|rdf|rss|safariextz|svgz?|swf|topojson|tt[cf]|txt|vcard|vcf|vtt|webapp|web[mp]|woff2?|xloc|xml|xpi)$">
Header unset X-Frame-Options
</FilesMatch>

</IfModule>
## Reduce MIME type security risks
<IfModule mod_headers.c>
Header set X-Content-Type-Options "nosniff"
</IfModule>
## Reflected XSS prevention
<IfModule mod_headers.c>
Header set X-XSS-Protection "1; mode=block"
</IfModule>

# mod_headers cannot match based on the content-type, however,
# the X-XSS-Protection response header should be send only for
# HTML documents and not for the other resources.

<IfModule mod_headers.c>
<FilesMatch "\.(appcache|atom|bbaw|bmp|crx|css|cur|eot|f4[abpv]|flv|geojson|gif|htc|ico|jpe?g|js|json(ld)?|m4[av]|manifest|map|mp4|oex|og[agv]|opus|otf|pdf|png|rdf|rss|safariextz|svgz?|swf|topojson|tt[cf]|txt|vcard|vcf|vtt|webapp|web[mp]|webmanifest|woff2?|xloc|xml|xpi)$">
Header unset X-XSS-Protection
</FilesMatch>
</IfModule>
## Remove Apache and PHP version signature
<IfModule mod_headers.c>
Header unset X-Powered-By
</IfModule>

ServerSignature Off
## Prevent content transformation
<IfModule mod_headers.c>
Header merge Cache-Control "no-transform"
</IfModule>
##### Advanced server protection -- END

## Disable HTTP methods TRACE and TRACK (protect against XST)
RewriteCond %{REQUEST_METHOD} ^TRACE
RewriteRule ^ - [R=405,L]
## Set the UTF-8 character set as the default
# Serve all resources labeled as `text/html` or `text/plain`
# with the media type `charset` parameter set to `UTF-8`.

AddDefaultCharset utf-8

# Serve the following file types with the media type `charset`
# parameter set to `UTF-8`.
#
# https://httpd.apache.org/docs/current/mod/mod_mime.html#addcharset

<IfModule mod_mime.c>
AddCharset utf-8 .atom \
.bbaw \
.css \
.geojson \
.js \
.json \
.jsonld \
.rdf \
.rss \
.topojson \
.vtt \
.webapp \
.xloc \
.xml
</IfModule>
##### Joomla! core SEF Section -- BEGIN
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteCond %{REQUEST_URI} !^/index\.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* index.php [L]
##### Joomla! core SEF Section -- END
---

PLEASE tell me what I am doing wrong with these exceptions ?

I know that I should not need the html and the *.* exceptions, but I cannot figure out what is required to allow this viewer to load this .kmz

thank you !
Kent

Kent,

My guess is that the 404 is a red herring, the real error is a 403. Check your server error log to see what is throwing the 403 error. You have the kmz extension allowed so I'm thinking your extension is calling a program outside of index.php. That would do what you're describing. The actual name of the program being called would be in the error log. Once we have that, we can set up an exception for it.

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