SVG import and export

[NBabout]

i created a rectangle in figma with a simple shadow and exported to svg. when I open the file in the browser everything is ok, while if I edit the file with affinity v2 (the same with v1) the shadow is not there. Even in the reverse step, I create the rectangle in affinity and import the svg file in figma, the shadow is not there. I contacted figma support and they replied that the problem is in affinity. In fact I tried to open the svg file created in figma with photopea.com and the shadow is present and editable. Is it possible that there isn't a standard on SVG? Where is the error?

[David in Яuislip]

Affinty import of std compliant svg is poor, anything it doesn't understand gets dumped
To produce a drop shadow of a shape do:
Copy the shape, colour it black, place it under ths shape, offset right/down as required
Apply a Guassian blur to the shadow using FX
Export to svg ensuring Rasterise is set to nothing
This is the only way I've found to force Affinity to use feGaussianBlur, anything else will get rasterised