If you are not decrypting SSL traffic, there are work arounds to enable forced safe search with Google, see the link below. https://support.google.com/websearch/answer/186669?hl=en In our environment we are using Option 3, Steps 1 and 3, and have not had a problem since. All other Google sites. like Google Maps, Play, News, Gmail, ect. are not affected by this change and they are still using HTTPS.
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