I am drawing some color-filled polygons in Adobe Illustrator using the pen tool. When I export it in a PNG file, the image looks just like I made it. But when I save it as an SVG image and open it in a browser, I see thin outlines around those polygons. Here is an example:
The first one is the PNG image, the second one is the SVG.
I tried with different browsers and it looks the same in all of them. Is this normal behaviour of SVG image? If not, then how can I remove those outlines and make it look like the PNG image?