Occasionally your device may not show a text box or you may see the text box but not be able to type in the box or some other feature is missing from the page you are viewing.  This is often caused by your browsers cache.  When the cache is cleared things will usually return to normal.

To clear your cache take a look at this article.

Clear your web browser’s cache, cookies, and history

• About cache, cookies, and history
  • Troubleshooting alternatives
• Mobile browsers
  • Android
  • Chrome for Android
  • Safari for iOS
  • Chrome for iOS
• Desktop browsers
  • Chrome
  • Firefox
  • Microsoft Edge
  • Internet Explorer 11
  • Opera
  • Safari 8 and later (macOS)

About cache, cookies, and history

Clearing your web browser’s cache, cookies, and history may remove data such as the following:

• Saved passwords
• Address bar predictions
• Shopping cart contents, etc.

While you should clear your web browser’s cache, cookies, and history periodically in order to prevent or resolve performance problems, you may wish to record some of your saved information first. If you are unable to do so, see Troubleshooting alternatives below.

For information about your web browser’s cache, cookies, and history, see the following Wikipedia pages:

• Web cache
• HTTP cookie
• Web browsing history

Troubleshooting alternatives

If you need to clear your cache, cookies, and history for troubleshooting purposes, but aren’t yet prepared to lose the content listed above, you may wish to consider using a private browsing window in your preferred browser as a temporary solution. For instructions, see:

• Private Browsing (Firefox)
• Browse in private with Incognito mode (Chrome desktop and Android)
• Browse InPrivate in Microsoft Edge
• Browse privately (Safari)
• Turn Private Browsing on or off on your iPhone, iPad, or iPod touch

Mobile browsers

Android

The steps to clear your cache, cookies, and history may differ depending on the model of your Android device and your preferred browser. However, you should be able to clear your cache and data from your application management settings menu:

1. Go to Settings and choose Apps or Application Manager.
2. Swipe to the All tab.
3. In the list of installed apps, find and tap your web browser. Tap Clear Data and then Clear Cache.
4. Exit/quit all browser windows and re-open the browser.

Chrome for Android

1. Tap Chrome menu > Settings.
2. Tap (Advanced) Privacy.
3. From the “Time Range” drop-down menu, select All Time.
4. Check Cookies and Site data and Cached Images and Files.
5. Tap Clear data.
6. Exit/quit all browser windows and re-open the browser.

Safari for iOS

1. Open your Settings app.
2. Tap Safari.
3. Tap Clear History and Website Data and confirm.
4. Exit/quit all browser windows and re-open the browser.

Chrome for iOS

1. Tap Chrome menu > Settings.
2. Tap Privacy.
3. Tap Clear Browsing Data.
4. Choose the data type you want to clear.
5. Tap Clear Browsing Data.
6. Exit/quit all browser windows and re-open the browser.

Desktop browsers

Chrome

1. In the browser bar, enter:

    chrome://settings/clearBrowserData

2. At the top of the “Clear browsing data” window, click Advanced.
3. Select the following:
   • Browsing history
   • Download history
   • Cookies and other site data
   • Cached images and files

   From the “Time range” drop-down menu, you can choose the period of time for which you want to clear cached information. To clear your entire cache, select All time.

4. Click CLEAR DATA.
5. Exit/quit all browser windows and re-open the browser.

Firefox

1. From the History menu, select Clear Recent History.If the menu bar is hidden, press Alt to make it visible.
2. From the Time range to clear: drop-down menu, select the desired range; to clear your entire cache, select Everything.
3. Next to “Details”, click the down arrow to choose which elements of the history to clear; to clear your entire cache, select all items.
4. Click Clear Now.
5. Exit/quit all browser windows and re-open the browser.

Microsoft Edge

1. In the top right, click the Hub icon (looks like star with three horizontal lines).
2. Click the History icon (looks like a clock), and then select Clear all history.
3. Select Browsing history, then Cookies and saved website data, and then Cached data and files. Click Clear.
4. After the “All Clear!” message appears, exit/quit all browser windows and re-open the browser.

Internet Explorer 11

1. Select Tools > Safety > Delete browsing history….If the menu bar is hidden, press Alt to make it visible.
2. Deselect Preserve Favorites website data, and select:
   • Temporary Internet files or Temporary Internet files and website files
   • Cookies or Cookies and website data
   • History
3. Click Delete. You will see a confirmation at the bottom of the window when the process is complete.
4. Exit/quit all browser windows and re-open the browser.

Opera

1. From the Opera menu, select Settings, then Privacy & Security, and then Clear browsing data….
2. In the dialog box that opens, from the “Obliterate the following items from:” drop-down menu, select The beginning of time.
3. Select the following:
   • Browsing history
   • Download history
   • Cookies and other site data
   • Cached images and files
4. Click Clear browsing data.
5. Exit/quit all browser windows and re-open the browser.

Safari 8 and later

1. From the Safari menu, select Clear History… or Clear History and Website Data….
2. Select the desired time range, and then click Clear History.
3. Go to Safari > Quit Safari or press Command-Q to exit the browser completely.

Original article from https://kb.iu.edu/d/ahic