WebViewer Server 2019 Changelog

Fix for a memory exhaustion bug that can cause crashes and out of heap errors
Redesigned on-disk cache to deal with problems resulting from certain configuration options causing on-disk cache behaviour to not work as desired
Improvements in CAD document handling
Added ability to pass custom headers to GetPDF, GetThumb and PreloadURL.
Fixes to container permission handling to allow usage with other Dockerfiles.
Addition of TRN_DISABLE_VALIDATION option, disables certificate validation by WebViewer Server when fetching files
Fix for multiple cached cookies of trnsockserv causing TRN_ENABLE_AUTHORIZATION to not work correctly
Added appearance stream support for annotations
Updated GetPDF.js to WVSApiWrapper.js, improved and changed structure of API
Fix for files with annotations greater than 1 MB causing failures on document load
Addition of TRN_AZURE_WEBAPP_COMPAT, this should be enabled if using Azure Web Apps, eliminates need for Azure Web App image variant
Redesign of WVS building process, this has resulted in a reduction of image size from 6 GB to 3.7 GB
Fix for CAD files not rendering properly on some server setups
Fix for stickiness handling with HAProxy and other environments which use cookies for stickiness

Memory Cache improvements to better respond to cache growth and adjustments
- Now considers temporary directories when reading disk usage.
- Improved disk usage metrics that trigger cleaning.
Added cacheKey feature to allow caching of documents against a passed key.
Update to PDFNet 7.0
Fixed issue when preventing downloading of documents that were uploaded in a corrupt state to WebViewer Server
Fixed error running container when no internal/static directories are defined.
Added ability to pass a configuration file to WebViewer Server.
Released the WebViewer Server Dockerless installer for Windows.
Fixed critical timing issue that caused the first page of a document to return incorrect data.
Fixed issue with TRN_FORWARD_CLIENT_COOKIES argument that caused it to improperly forward cookies as headers rather than cookie headers.
All files are now linearized for to improve performance at a minimal cost. Previously, only files above 30 MB were linearized.
Addition of the wvs_config.json configuration option to be used with the static installer.

Changed build scheme within the WebViewer compose package. This package now pulls directly from DockerHub.
Added TRN_FORCE_LOSSLESS_IMAGES for lossless image rendering to prevent artifacting when performing differential layering.
Changed how SSL keys are placed into the server for HAProxy and Tomcat. They now use a volume mounting scheme and do not require a rebuild.
Added ability to pass extra headers to GetPDF that will not be considered as part of the caching link.
Several fixes to prevent errors that are caused by filenames being greater than 256 characters.
Added fix for crash caused by .tif files.
Corrected erroneous attempt to trigger a debug packager on server crash.
Added default arguments for static and internal directories.
Made all environment variables compatible with true and false and 1 and 0 to deal with inconsistencies.

Fix for office documents sometimes causing fatal crashes when done in quick succession
Added TRN_ENABLE_PER_SESSION_CACHING
Revised TRN_ENABLE_SESSION_AUTH to be locked to a single session rather than any currently connecting one
Minor fixes to environment config options

Change in version number handling to match new versioning system
Fix for crashes caused by timing error with cache cleanup
Fix for filenames being too long and causing a render failure
Increased the cacheMaxSize variable within Tomcat to deal with warnings resulting from large file caching
Improved logging by removing non-informative outputs

Fix for URL Encoding so it more closely follows Chrome behaviour when fetching files
Fix for in memory document cache memory leak

Version 1.2

New:

Added support for CAD files in dgn, dwg, and dxf format.
Can now limit backend document access to a given set of URL roots using the TRN_FETCH_REQUIRED_URL_ROOT option.
Enabled automatic cookie forwarding for cases where the server and document store are in the same domain, using the TRN_FORWARD_CLIENT_COOKIES configuration option.
Core logic now uses newest Apryse SDK 6.10 release.
Server now supports a certificate whitelist -- useful for development environments using self-signed certificates.

Fixes:

Improved support for very large files (>2GB) -- won't hand off rendering to the client in cases where it can't support it.
Now properly support files with the .htm extension.
Default load balancer cookie name now the same as HAProxy's cookie name without extra configuration.
Various tweaks to how WebViewer client communicates with WebViewer Server, which should result in snappier performance for some client configurations.
Fixed bug where we would incorrectly parse query parameters with no =.

links causing failed fetches

Adjust CORS settings to properly support the XMLHttpRequest.withCredentials flag
Updated SDK binary to address potential stability issues with very large log messages

Last updated 1 month ago

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