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Web Application Common Browser Issues

It can be difficult to know exactly which browser, plug-in, credential, or special access is needed for specific applications. Thus, the Computing and Technology Services (CTS) Help Desk has created the following guide to understanding and fixing common issues associated with internet applications.

Requirements:  Any browser

Common Issues: Cached History


Requirements: Java, IE 10 (or above)

Common Issues: Cached History


Requirements: Java, IE 10 (or above), compatibilty mode

Common Issues: Cached HistoryJava, Pop-ups enabled



Requirements: Java, IE (10 or above), pop-ups enabled, cookies enabled

Common Issues: Java, Cached History, Adobe Flash, Adobe Reader

Internet History and Cache

Your internet history and cache contain stored data that your computer has accumulated from your previous visits to websites. Most times, this stored data will help you access those sites more quickly by decreasing the load time of files and cookies that are temporarily being stored on your computer. Sometimes, however, old stored data can create problems for applications and pages that have had their content updated frequently. You can fix many browser problems simply by clearing your cache. Click the link below for instructions on how to clear your history and cache in many common browsers

Clear History and Cache

Important Note

For Internet Explorer users, do not select the Preserve Favorites website data check box.


Cookies are an important part of computing and are required by many web pages. It's important for users to know how to enable and disable cookies as needed, or how to clear old cookies, which can store obsolete data and prevent pages from displaying properly.

Enabling Cookies

Disabling Cookies

Clearing Cookies


Java can be vital to certain operations within your web browser as it is used to run certain applications which normally open within a new window.




(for personal machines only)

Important Note

On Duquesne-owned machines, Java is deployed and updated by CTS.

Pop-Up Blockers

Pop-up blockers can offer convenience and safety from annoying pop-up windows. However, sometimes they can also prohibit necessary windows for certain Duquesne applications. Pop-up blockers can sometimes already come packaged within the browser, or they can be installed into a browser as a third-party add-on. Click the link below for instructions on how to disable pop-up blockers in many common browsers

Disabling Pop-Up Blockers

Compatibility Mode

Compatibility mode is a feature that was first introduced with Microsoft Internet Explorer 8.0. It enables the browser to enter a mode that allows it to support pages that may not have all the latest browser features.To add a site to the Compatibility View:

1. Open Internet Explorer.

2. Tap or click the Tools button gear, and then tap or click Compatibility View settings.

3. Under Add this website, enter the URL of the site you want to add to the list, and then tap or click Add.

Important Note

If you add a site to the Compatibility View list and the page looks worse, the problem might not be compatibility and you should remove the site from the list.