UIGraphicsImageContext: both dimensions must be > 0

App/Web Process Bundle Bridge/SBRScriptPolicy.m

@@ -77,7 +77,7 @@ static CGFloat RoundToScale(CGFloat v, CGFloat s) {
 + (UIImage *)iconRepresentationForPolicyType:(SBRScriptOriginPolicyType)policyType withConfiguration:(nonnull SBRScriptPolicyIconConfiguration *)configuration
 {
     const CGSize size = [configuration size];
-    if (CGSizeEqualToSize(size, CGSizeZero)) {
+    if (size.width < CGFLOAT_EPSILON || size.height < CGFLOAT_EPSILON) {
         return nil;
     }