I use clip-path to create the particular shape of the blue search button.
From Chrome you see a strange line at the cutout edge, while from Firefox
I had a similar issue where the right edge of a clip path was sitting just inside of 100%. I was able to fix this by setting the right edge x-coordinate values to 101% and adding overflow: hidden;
to the parent element.
clip-path: polygon(0 0, 101% 0, 101% 80%, 0 100%);
I imagine you could do the same on the left side by inputting negative values?
Image before fix
Image after fix
I had a similar (if not the same) issue, I fixed this by adding the following style to the element with the clip-path
:
transform: translateZ(0)