Web Client - Troubleshooting

Clear the browser cache / clear browser data

The "cache" is a storage location for data that has been previously requested. It is supposed to speed up future requests for the same data. Sometimes, older copies of data can cause problems. Clearing the cache removes old copies of data, and refreshes the page.

To clear the Chrome cache:
  1. In the Evergreen Chrome profile, open the Chrome menu
  2. Mouse over More tools
  3. Click Clear browsing data
    WebClient Chrome ClearCache Settings.png
  4. In the Clear browsing data pop-up
    • Change the Time range to All time
    • Make sure Cookies and other site data is NOT checked
  5. Click Clear data
    WebClient ClearCache ClearData.png
  6. Close the Settings tab

Keyboard shortcuts to reload a Chrome page

  • F5 or Ctrl + r - will relaod the current page, often from cached content
  • Shift + F5 or Ctrl + Shift + r - forces the web browser to ignore its cached contents and retrieve a fresh copy of the web page into the browser.

Check your Chrome version

Evergreen functionality relies on an up to date version of Chrome. Generally, Chrome will automatically update, but, if staff PCs are frozen using Deepfreeze or otherwise have updates locked down, these automatic updates will not happen. To verify that your version of Chrome is up to date, and get prompts to update if it is not, follow these steps.

  1. In the Evergreen Chrome profile, oen the Chrome menu
  2. Mouse over Help, and click About Google Chrome
    WebClient ChromeTroubleshooting ChromeVersion Menu.png
  3. In the About Chrome Settings window, there will be a status indication that Chrome is up to date, or needs updating
    WebClient ChromeTroubleshooting ChromeVersion Settings.png
    • If Chrome needs updating, follow the screen prompts

Check installed extensions

Extensions are small programs that add features or extra functionality to your web browser. Evergreen uses the Hatch extension to manage printing. In general, you want to avoid adding extra extensions that are not directly related to Evergreen functionality, or specific work-related tasks.
  1. Open the Chrome menu
  2. Mouse over More Tools Click Extensions
    Troubleshooting Chrome ExtensionsMenu.png
  3. A new tab will open displaying all installed extensions
    Troubleshooting Chrome ExtensionsInstalled.png
    • Extensions with a blue slider are active, with a grey slider are inactive
  4. Remove extensions that you do not recognize and are not used for library related work
  5. Most libraries should have only Hatch, which is required for managed printing; Adobe is a common extension for PDF documents

ALERT! Extensions related to adware, coupons, etc. can cause major problems with browser response speed, display, and functionality. This is another reason why PLS recommends using a Chrome profile dedicated to Evergreen.

No printers recognized

  • Try waiting a few minutes
  • Try logging out of Evergreen, closing the browser, then logging back in
  • Hatch may need to be reinstalled again (no need to uninstall)

Printing is configured but nothing prints

  • If you are checking a Receipt content print - check the Receipt Printer Settings > Margins. Generally the Star printers use Automatic Margins set to either "Device Minimum" or "Equal Opposites". Set one margin option, apply changes, and do a Test Print. If the test print works, the margin setting is good. If the test print does NOT print, try the other option.
  • Check for multiple entries for the printer, select the highest copy version, example "Star SP500 Tear Bar (SP521) (Copy 2)", and run Test Print. If it does not print, test the other entires.
    PrinterSettings MultiplePrinterConnections.png

One single slip does not print, but others do

  • There is a problem with the template.
    • Copy and paste the template code from a workstation with a working template
    • Copy and paste customization code from Evergreen Configuration Print Templates
    • Or contact PLS for assistance de-bugging the template

Verify Hatch is installed

  1. Open the Windows start menu
    EvergreenTroubleshooting WindowsSettings.png
  2. Click Settings
  3. In the Windows Settings window, click Apps
    EvergreenTroubleshooting WindowsSettings.png
  4. In the Apps & features window, search for Hatch
    EvergreenTroubleshooting WindowsSettings Apps Search.png
  5. If "Evergreen ILS - Hatch" displays, Hatch is installed

more Verify Hatch extension is enabled
more Check that Hatch is enabled in Evergreen

Check Hatch version

For Evergreen version 3.3 use version 0.2.0 of Hatch. To check this, follow the steps above, then click on the entry for Hatch to expand the details:
EvergreenTroubleshooting Hatch Version33.png

White Screen failure

Occasionally in the web client, a failure will occur where staff successfully login to the Evergreen server, but the only part of the client that displays in the green menu bar. The rest of the page is blank - home page options to not display, the scroll bar does not display, none of the menus work, and no actions can be made. This is referred to as the "white screen".
WebClient WhiteScreen.png

  1. Clear stored data
    1. Open the staff client
    2. On the keyboard, press the F12 key (this opens a side panel with developer tools)
      WebClient WhiteScreen ChromeDevTools-Application.png
    3. Select the Application tab - click the >> if it is not visible
    4. Click Clear Storage, verify that you are looking at the Evergreen web client, click Clear site data
      WebClient WhiteScreen ChromeApplication-ClearStorage.png
    5. Login to evergreen again; if the client displays as normal youa re all set, if not continue to step 2
  2. Check your installed applications
    1. Right click the Windows icon 1 Click Apps and Features
    2. Scroll through the list of programs to verify that Evergreen ILS - Hatch - Java Based Print Service… is installed
    3. Scroll through the list of programs to verify that Java is installed, for both 32- and 64-bit versions of Java 8, update 171 or higher
  3. Verify that Hatch is installed on Chrome
    1. Open Chrome
    2. Click the hamburger menu, then select More Tools > Extensions
    3. Look for Hatch Native Messenger
      WebClient WhiteScreen ChromeExtensions Hatch.png

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