Why am I seeing garbage text when viewing documents with PrizmDoc using Internet Explorer, Chrome, or Firefox?

Question

When viewing documents within the PrizmDoc Viewer using a particular browser, we are seeing garbage text. Viewing the same document with other browsers shows the text properly. What could be causing this to occur?

Answer

There are two possible causes for this in Internet Explorer 11 and you can check the settings below to potentially fix the issue:

In Internet Explorer 11 settings, ensure the Font Download option is enabled:

  1. Click on Internet Options.
  2. Select the Security Tab.
  3. Under Local Intranet zone, select Custom Level.
  4. Under Downloads, set Font download to Enabled.

Disable the “Turn off Data URI” support setting:

  1. Click Start, type gpedit.msc in the Start Search box, and then press Enter.
  2. In the navigation pane of the Local Group Policy Editor window, expand Computer Configuration > Administrative Templates > Windows Components > Internet Explorer > Security Features.
  3. In the right pane, double-click Turn Off Data URI support.
  4. Select Disable, click Apply, and then click OK.
  5. Go back to the navigation pane of the Local Group Policy Editor window, expand User Configuration > Administrative Templates > Windows Components > Internet Explorer > Security Features.
  6. Repeat steps 3 and step 4 above.

In Internet Explorer 11 settings, ensure Ignore font styles specified in webpages is not checked.

  1. Click on Internet Options.
  2. Select the General Tab.
  3. Click on Accessibility button.
  4. Un-check Ignore font styles specified in webpages.

In Chrome this is a bug that was found about 3 years ago and fixed in Chrome Canary, but not in Chrome Stable at the time:

https://productforums.google.com/forum/#!msg/chrome/rpmz56gnFKc/nPLtsbYZBwAJ

This may be why Chrome is having problems. Consider either updating Chrome Stable to the latest version or testing in Chrome Canary to see if that fixes the garbage character issues with that browser.

In Mozilla Firefox there is a setting you can enable which could resolve this problem in that browser:

  1. Go to Options/Preferences > General: Fonts & Colors > Advanced and select Allow pages to choose their own fonts (instead of My selections above).