KB-1691 Some images in Appian process modeler render as black squares in Internet Explorer

Jordan Horwat — Tue, 04 Sep 2018 21:41:57 GMT

Current Revision posted to Appian Knowledge Base by Jordan Horwat on 9/4/2018 9:41:57 PM

Symptoms

When opening Appian process modeler in Internet Explorer 11, some, but not all, images render as black squares:

Cause

The issue occurs for GIF files served by the web server when the web server is configured to include an X-Content-Type-Options: nosniff header. With the header enabled, the browser cannot detect the correct MIME type of the assets.

The issue is caused by an underlying issue with the assets in the Appian product and has been reported to the Appian Product Team via AN-105088.

Workaround

The recommended workaround is to configure the web server to not serve GIF files from Appian, and instead serve these files from the application server. For Apache Web Server, the Appian documentation includes an example configuration.

Alternatively, the X-Content-Type-Options: nosniff header can be disabled on the web server.

Affected Versions

This article applies to all versions of Appian using a web server and Internet Explorer 11 as a web browser.

Last Reviewed: September 2018

Tags: web browser, known issues, IIS, process modeler, apache, web server, internet explorer, infrastructure, open issues

KB-1691 Some images in Appian process modeler render as black squares in Internet Explorer

Jordan Horwat — Tue, 04 Sep 2018 17:41:57 GMT

Revision 4 posted to Appian Knowledge Base by Jordan Horwat on 9/4/2018 5:41:57 PM

Symptoms

When opening Appian process modeler in Internet Explorer 11, some, but not all, images render as black squares:

Cause

The issue is caused by an underlying issue with the assets in the Appian product and has been reported to the Appian Product Team via AN-105088.

Workaround

Alternatively, the X-Content-Type-Options: nosniff header can be disabled on the web server.

Affected Versions

This article applies to all versions of Appian using a web server and Internet Explorer 11 as a web browser.

Last Reviewed: September 2018

Tags: web browser, known issues, IIS, process modeler, apache, web server, internet explorer, infrastructure, open issues

KB-XXXX Some images in Appian process modeler render as black squares in Internet Explorer

Jussi Lundstedt — Fri, 31 Aug 2018 07:12:29 GMT

Revision 3 posted to Appian Knowledge Base by Jussi Lundstedt on 8/31/2018 7:12:29 AM

Symptoms

When opening Appian process modeler in Internet Explorer 11, some, but not all, images render as black squares:

Cause

The issue is caused by an underlying issue with the assets in the Appian product and has been reported to the Appian Product Team as AN-105088.

Workaround

Alternatively, the X-Content-Type-Options: nosniff header can be disabled on the web server.

Affected Versions

This article applies to all versions of Appian using a web server and Internet Explorer 11 as a web browser.

Last Reviewed: August 2018

Tags: web browser, known issues, IIS, process modeler, apache, web server, internet explorer, infrastructure, open issues

KB-XXXX Some images in Appian process modeler render as black squares in Internet Explorer

Jussi Lundstedt — Fri, 31 Aug 2018 07:12:09 GMT

Revision 2 posted to Appian Knowledge Base by Jussi Lundstedt on 8/31/2018 7:12:09 AM

Symptoms

When opening Appian process modeler in Internet Explorer 11, some, but not all, images render as black squares:

Cause

The issue is caused by an underlying issue with the assets in the Appian product and has been reported to the Appian Product Team as AN-105088.

Workaround

Alternatively, the X-Content-Type-Options: nosniff header can be disabled on the web server.

Affected Versions

This article applies to all versions of Appian using a web server and Internet Explorer as a web browser.

Last Reviewed: August 2018

Tags: web browser, known issues, IIS, process modeler, apache, web server, internet explorer, infrastructure, open issues

KB-XXXX Some images in Appian Process Modeler render as black squares in Internet Explorer

Jussi Lundstedt — Thu, 30 Aug 2018 21:45:38 GMT

Revision 1 posted to Appian Knowledge Base by Jussi Lundstedt on 8/30/2018 9:45:38 PM

Symptoms

When opening Appian Process Modeler in Internet Explorer 11, some, but not all, images render as black squares:

Cause

The issue is caused by an underlying issue with the assets in the Appian product and has been reported to the Appian product team as AN-105088.

Workaround

Alternatively, the X-Content-Type-Options: nosniff header can be disabled on the web server.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: August 2018

Tags: web browser, known issues, IIS, process modeler, apache, web server, internet explorer, infrastructure