Product Documentation

About Citrix Receiver for HTML5 2.4

Nov 01, 2017

Citrix Receiver for HTML5 is hosted on StoreFront servers and enables users to access virtual desktops and hosted applications from a web browser. Resources delivered by XenDesktop and XenApp are aggregated in a StoreFront store and made available through a Citrix Receiver for Web site. With Citrix Receiver for HTML5 enabled on the site, users can access desktops and applications within their web browsers without needing to install Citrix Receiver locally on their devices.

When used in conjunction with the centralized customization and branding capabilities of the StoreFront 3.0 (and later), users of this Citrix Receiver for HTML5 release will receive a centrally managed app and desktop selection experience from StoreFront. This is the same consistent user experience that can be received by the Windows and Mac desktop Citrix Receivers and Chrome web Citrix Receiver when associated with the StoreFront.

What's new in 2.4

Customer Experience Improvement Program (CEIP)

The Citrix Customer Experience Improvement Program (CEIP) gathers anonymous configuration and usage data from Citrix Receiver for HTML5 and automatically sends the data to Citrix. This data helps Citrix improve the quality, reliability, and performance of Citrix Receiver for HTML5. CEIP is available with Citrix Receiver for HTML5 Version 2.4 onwards. 

By default, CEIP is enabled.

When you opt-in to participate in CEIP, the data is collected on a weekly basis. However, when you disable CEIP, the data is not collected after opting out. You can choose to opt-out of CEIP program anytime.

The data is stored in the browser cache and transferred securely via HTTPS to Citrix. CEIP data is not sent to Citrix in the first 7 days after installing or upgrading to HTML5 Version 2.4. 

For more information on the CEIP, see About the Citrix Customer Experience Improvement Program (CEIP).

To configure CEIP, see Configuring CEIP.

HDX SDK enhancement

This release of Citrix Receiver for HTML5 provides an enhanced user experience by incorporating additional APIs to the HDX SDK paradigm. With these additional APIs, SDK consumers can:

  • Send logoff message on both desktop and app sessions. 

For the latest HDX SDK APIs and examples, see the download page.

For HDX SDK API documentation for HTML5, see HDX SDK for HTML5.

What's new in 2.3

Support for selective use of H.264 in Thinwire

Citrix Receiver for HTML5 now supports selective use of H.264 in Thinwire, plus encoding of transient content instead of the JPEG encoder available on the VDA. This feature is available only on VDAs Version 7.11 or later.

For more information on configuring selective H.264, see Configuring selective H.264.

Enhancement to caching behavior of video content in Thinwire

Thinwire can now bypass caching of server-rendered video content while at the same time retaining cached bitmaps for other open windows using text-based data (for example Excel, Windows Explorer, desktop background), resulting in a 5% reduction in bandwidth use. This enhancement is available in XenApp and XenDesktop 7.11 or later.

For more information on configuring Thinwire, see the XenApp and XenDesktop documentation.

What's new in 2.2

Session reliability

Citrix Receiver for HTML5 now allows administrators to configure the following policies using Citrix Studio:

  • Session Reliability time-out
  • Reconnect user interface transparency level

For more information, see For more information, see Session reliability in XenApp and XenDesktop documentation.

Access to session logs using toolbar
With this release, Citrix Receiver for HTML5 allows users to access HTML5 session logs. This can be done using the Logging option present in the HTML5 toolbar.

Time zone enhancement

With this release, Citrix Receiver for HTML5 has extended support of both English and native languages in client time zone redirection.

HDX SDK enhancement

This release of Citrix Receiver for HTML5 provides an enhanced user experience by incorporating additional APIs to the HDX SDK paradigm. With these additional APIs, SDK consumers can:

  • Add custom button(s) to the primary or secondary menu of the toolbar.
  • Send special key combinations

For the latest HDX SDK APIs and examples, see the download page.

What's new in 2.1

Enhanced HDX SDK

This release of Citrix Receiver for HTML5 provides an enhanced user experience by incorporating additional APIs to the HDX SDK paradigm. With these additional APIs, the SDK consumers can:

  • switch between fixed and dynamic resolution in an active session. With this functionality, users can change session resolution from fixed to auto fit and vice versa.
  • disable the session close alert on reload/close of the page when the session is launched.
  • set a preferred language for the session. By default, the session uses the language set in the browser.

For the latest HDX SDK APIs and examples, see the download page.

What’s new in 2.0

Redesigned toolbar

Citrix Receiver for HTML5 provides a redesigned toolbar to improve the user experience at this release. This enhancement provides new options accessible from the toolbar to facilitate common tasks, such as:

  • switching to full screen mode
  • upload or download a file
  • copy content from an active session to the clipboard to enable sharing between sessions
  • access additional options

For more information, see Configuring toolbar.

Client-side appswitcher

This release of Citrix Receiver for HTML5 introduces client-side appswitcher functionality. This feature provides a taskbar listing applications within an active session, with opened applications clearly labeled to facilitate switching between them. Click the Citrix Receiver for HTML5 icon at the top of the screen to use appswitcher.

Important

With the new client side app switcher feature introduced at this release of Citrix Receiver for HTML5, an administrator no longer needs to install appswitcher separately on the VDA. Citrix recommends that you uninstall an existing instance of appswitcher on the VDA.

Mobility support

Citrix Receiver for HTML5 enhances mobility support by allowing you to launch sessions on touch and mobile device browsers; this feature includes support for gestures, multi-touch and soft keyboard functionality. Enhanced mobility support is provided for the following:

  • iPad Safari
  • iPhone Safari
  • Edge browser on Windows 10 phones and touch-enabled desktops
  • Android Chrome
For more information, see Configuring Mobility support.

What’s new in 1.9

Enhanced clipboard support

Citrix Receiver for HTML5 now supports HTML format in addition to plain text between client and a session. This support is useful for Office apps and browsers. Enhanced clipboard support is only available on Chrome and Safari browsers. 

For more information, see Configuring clipboard.

What’s new in 1.8

HDX SDK

Citrix Receiver for HTML5 enhances support for HDX and SDK sessions by enabling you to customize your delivery model for Citrix hosted apps and desktops through your website. This feature is particularly useful for building a rich app experience in your Enterprise portals; it can be used to provide a rich app experience for users as a service when hosting Citrix Receiver for HTML5 on your web server while launching Citrix hosted apps and desktops from your website.

For more information on SDK for HTML5, see HDX SDK for HTML5.

What’s new in 1.7

File Transfer

Citrix Receiver for HTML5 provides a secure file transfer between a user device and a VDA session. This feature uses a file transfer virtual channel instead of client drive mapping.

For more information, see File Transfer.

What’s new in 1.6

Graphics and audio optimizations

Audio processing, memory management, and legacy codec support optimizations improve audio-video playback and bandwidth efficiency with XenApp and XenDesktop. Visually lossless mode in XenApp and XenDesktop 7.6 is also enabled.

What’s new in 1.5

  • Support for HDX Insight- You now have NetScaler HDX Insight support for Receiver for HTML5 traffic to monitor applications launched inside a session.
  • Support for CloudBridge- Citrix Receiver for HTML5 now supports CloudBridge disabling compression and printer compression, as well as using HDX Insight analytics to display in CloudBridge Insight Center.

What's new in 1.4

Print to PDF

You can convert a documents that are opened with hosted applications or applications running on virtual desktops to PDF. The PDF is then transferred to the local device for viewing and printing from a printer that is attached locally.

For more information, see Configuring PDF printing.

Receiver unique ID per device

Citrix Receiver for HTML5 generates a unique client name for each browser the first time a session is started and uses this name for all subsequent sessions, thereby, enabling you to track license usage for hosted applications.