Stop line SVG code stripping

Replies: 0

I have added inline svg code you my WooComemrce product specificiations teb. When I save this shows fine. But if I open the product details again and view the details all the SVG code is gone.
If any changes to the product such as simple changing the price and saving then all the SVG code is removed.
The SVG code is used for the Controls icons.
How can I prevent WordPress and WooComemrce from stripping this code?