this drives me nuts – mainly because I assume this is absolutely my or my servers fault: Every time I create a new page and save it or edit an existing page and save it or I upload a file via drag-n-drop the first time it doesn’t work and the white progress bar takes for ever and actually never finishes. If I do the same thing a second it works.
Same for logging in: first time nope, second time fine.
I am on Toolkit / Kirby / Panel 2.3.2 and desperately need any hint how debug this and find the cause of this odd behavior.
Are you using the latest version of the cachebuster plugin?
I’d try to disable/remove all plugins one by one to see which might be causing this. It’s probably likely a field is causing this as the issue appears in the panel.
Even with all plugins (moved outside the /plugins folder and disabled in config.php) disabled and the original .htaccess restored the creeping progress bar without save success is still a thing. Not every second time but often enough to make me sad.
For now it happens mainly on Safari (9.1.2). I used the panel with Firefox for most of the day and so far the described problems never occurred. Maybe some interactions with Safari’s content blockers? I’ll check this.
So upon some further diggin the problems doesn’t seem to be related to the browser used, but are due to some common caching directives I’ve added to .htaccess:
# ######################################################################
# # MEDIA TYPES AND CHARACTER ENCODINGS #
# ######################################################################
# ----------------------------------------------------------------------
# | Media types |
# ----------------------------------------------------------------------
# Serve resources with the proper media types (f.k.a. MIME types).
#
# https://www.iana.org/assignments/media-types/media-types.xhtml
# https://httpd.apache.org/docs/current/mod/mod_mime.html#addtype
<IfModule mod_mime.c>
# Data interchange
AddType application/atom+xml atom
AddType application/json json map topojson
AddType application/ld+json jsonld
AddType application/rss+xml rss
AddType application/vnd.geo+json geojson
AddType application/xml rdf xml
# JavaScript
# Normalize to standard type.
# https://tools.ietf.org/html/rfc4329#section-7.2
AddType application/javascript js
# Manifest files
AddType application/manifest+json webmanifest
AddType application/x-web-app-manifest+json webapp
AddType text/cache-manifest appcache
# Media files
AddType audio/mp4 f4a f4b m4a
AddType audio/ogg oga ogg opus
AddType image/bmp bmp
AddType image/svg+xml svg svgz
AddType image/webp webp
AddType video/mp4 f4v f4p m4v mp4
AddType video/ogg ogv
AddType video/webm webm
AddType video/x-flv flv
# Serving .ico image files with a different media type
# prevents Internet Explorer from displaying then as images:
# https://github.com/h5bp/html5-boilerplate/commit/37b5fec090d00f38de64b591bcddcb205aadf8ee
AddType image/x-icon cur ico
# Web fonts
AddType application/font-woff woff
AddType application/font-woff2 woff2
AddType application/vnd.ms-fontobject eot
# Browsers usually ignore the font media types and simply sniff
# the bytes to figure out the font type.
# https://mimesniff.spec.whatwg.org/#matching-a-font-type-pattern
#
# However, Blink and WebKit based browsers will show a warning
# in the console if the following font types are served with any
# other media types.
AddType application/x-font-ttf ttc ttf
AddType font/opentype otf
# Other
AddType application/octet-stream safariextz
AddType application/x-bb-appworld bbaw
AddType application/x-chrome-extension crx
AddType application/x-opera-extension oex
AddType application/x-xpinstall xpi
AddType text/vcard vcard vcf
AddType text/vnd.rim.location.xloc xloc
AddType text/vtt vtt
AddType text/x-component htc
</IfModule>
# ######################################################################
# # WEB PERFORMANCE #
# ######################################################################
# ----------------------------------------------------------------------
# | Compression |
# ----------------------------------------------------------------------
<IfModule mod_deflate.c>
# Force compression for mangled headers.
# http://developer.yahoo.com/blogs/ydn/posts/2010/12/pushing-beyond-gzipping
<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>
# Compress all output labeled with one of the following MIME-types
<IfModule mod_filter.c>
AddOutputFilterByType DEFLATE application/atom+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/json
AddOutputFilterByType DEFLATE application/ld+json
AddOutputFilterByType DEFLATE application/manifest+json
AddOutputFilterByType DEFLATE application/rdf+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/schema+json
AddOutputFilterByType DEFLATE application/vnd.geo+json
AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
AddOutputFilterByType DEFLATE application/x-font-ttf
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-web-app-manifest+json
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE font/eot
AddOutputFilterByType DEFLATE font/opentype
AddOutputFilterByType DEFLATE image/bmp
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE image/vnd.microsoft.icon
AddOutputFilterByType DEFLATE image/x-icon
AddOutputFilterByType DEFLATE text/cache-manifest
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/vcard
AddOutputFilterByType DEFLATE text/vnd.rim.location.xloc
AddOutputFilterByType DEFLATE text/vtt
AddOutputFilterByType DEFLATE text/x-component
AddOutputFilterByType DEFLATE text/x-cross-domain-policy
AddOutputFilterByType DEFLATE text/xml
</IfModule>
<IfModule mod_mime.c>
AddEncoding gzip svgz
</IfModule>
</IfModule>
# ----------------------------------------------------------------------
# | Expires headers |
# ----------------------------------------------------------------------
<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault "access plus 1 day"
# Favicon (cannot be renamed!) and cursor images
ExpiresByType image/vnd.microsoft.icon "access plus 1 week"
ExpiresByType image/x-icon "access plus 1 week"
# Data interchange
ExpiresByType application/atom+xml "access plus 1 hour"
ExpiresByType application/rdf+xml "access plus 1 hour"
ExpiresByType application/rss+xml "access plus 1 hour"
ExpiresByType application/json "access plus 0 seconds"
ExpiresByType application/ld+json "access plus 0 seconds"
ExpiresByType application/schema+json "access plus 0 seconds"
ExpiresByType application/vnd.geo+json "access plus 0 seconds"
ExpiresByType application/xml "access plus 0 seconds"
ExpiresByType text/xml "access plus 0 seconds"
# HTML
ExpiresByType text/html "access plus 0 seconds"
# Media files
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/ico "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
ExpiresByType image/jpg "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType image/svg+xml "access plus 1 month"
# CSS
ExpiresByType text/css "access plus 1 week"
# JavaScript
ExpiresByType text/javascript "access plus 1 week"
ExpiresByType application/x-javascript "access plus 1 month"
ExpiresByType application/javascript "access plus 1 month"
# Web fonts
# Embedded OpenType (EOT)
ExpiresByType application/vnd.ms-fontobject "access plus 1 month"
ExpiresByType font/eot "access plus 1 month"
# OpenType
ExpiresByType font/opentype "access plus 1 month"
# TrueType
ExpiresByType application/x-font-ttf "access plus 1 month"
# Web Open Font Format (WOFF) 1.0
ExpiresByType application/font-woff "access plus 1 month"
ExpiresByType application/x-font-woff "access plus 1 month"
ExpiresByType font/woff "access plus 1 month"
# Web Open Font Format (WOFF) 2.0
ExpiresByType application/font-woff2 "access plus 1 month"
</IfModule>
# ----------------------------------------------------------------------
# | ETags |
# ----------------------------------------------------------------------
<IfModule mod_headers.c>
Header unset ETag
</IfModule>
FileETag None
Sorry for the ugly code embed – but I couldn’t find any help to make it look better.
Sorry, still no all-clear from me. I’ve removed all caching directives from .htaccess, cleared the Safari’s cache, restarted Safari and disabled the content blocker (Roadblock) in Safari. I needed three times to log into the panel and twice saving a brand new page failed.
I’ll try to use FF and Chrome a little more together with the panel to rule-out it is some server side problem.
