Knowledgebase:
Moodle - "Google Chrome OS can't open this page"
Posted by Respondus Support
If you are trying to take an exam in your Moodle environment, and you encounter an error that reads "Google Chrome OS can't open this page," this means one or more of the following is likely true:

* You do not yet have the LockDown Browser for Chromebook extension installed.
* The extension is installed, but disabled.
* Cookies or cache are interfering.

Step 1: Ensure the extension is both installed and enabled:
a) Enter the following in the URL address bar in Chrome: Chrome://extensions/
b) Locate the LockDown Browser Chrome Extension. If you don't see it listed, it's not installed. You can use your institution's LockDown Browser download URL to install the extension. This URL is typically found on the quiz summary page.
c) Ensure the LockDown Browser for Chromebook extension is enabled (toggled "on" with the slider all the way to the right.)
d) Once you do all the above, try again to take your exam.

Step 2:  If Step #1 does not solve the problem, clear all cache and cookies within the Chrome Web browser:

a) Enter the following in the URL address bar in Chrome: Chrome://settings/clearBrowserData
b) Select "All time" for Time Range
c) Select "Cookies and other site data," then click the "clear data" button.
d) Then attempt your exam again.

Step 3: If necessary, clear all site data:
a) Enter the following in the URL address bar in Chrome: chrome://settings/siteData 
b) Click the "Remove All" button to delete all leftover cookies and site data. A pop-up window may appear, asking you to confirm. Click the "clear all" button in this pop-up.
c) Restart your Chromebook, log into Moodle and attempt your exam again.