diff --git a/src/geo/polygons.js b/src/geo/polygons.js
index 147018e4..c9f86a23 100644
--- a/src/geo/polygons.js
+++ b/src/geo/polygons.js
@@ -655,6 +655,7 @@
 
         // ensure angle is in the -90:90 range
         angle = angle % 180;
+        while (angle < -90) angle += 180;
         while (angle > 90) angle -= 180;
 
         // X,Y ray slope derived from angle
diff --git a/src/geo/wasm.js b/src/geo/wasm.js
index 88f38ac7..5dff5d43 100644
--- a/src/geo/wasm.js
+++ b/src/geo/wasm.js
@@ -161,10 +161,10 @@ if (!self.window) (function() {
                     debug_string: (len, ptr) => { console.log('wasm', readString(ptr, len)) }
                 },
                 wasi_snapshot_preview1: {
-                    args_get: (count,bufsize) => { return 0 },
-                    args_sizes_get: (count,bufsize) => { },
-                    environ_get: (count,bufsize) => { return 0 },
-                    environ_sizes_get: (count,bufsize) => { },
+                    // args_get: (count,bufsize) => { return 0 },
+                    // args_sizes_get: (count,bufsize) => { },
+                    // environ_get: (count,bufsize) => { return 0 },
+                    // environ_sizes_get: (count,bufsize) => { },
                     proc_exit: (code) => { return code }
                 }
             }))
diff --git a/src/mode/fdm/slice.js b/src/mode/fdm/slice.js
index 1a9df3ec..f351172f 100644
--- a/src/mode/fdm/slice.js
+++ b/src/mode/fdm/slice.js
@@ -1172,14 +1172,14 @@
             }
             if (tofill.length > 0) {
                 doFillArea(fillQ, tofill, angle, spacing, newfill);
-                top.fill_lines_norm = {angle:angle,spacing:spacing};
+                // top.fill_lines_norm = {angle:angle,spacing:spacing};
             }
             if (angfill.length > 0) {
                 top.fill_lines_ang = {spacing:spacing,list:[],poly:[]};
                 for (let af of angfill) {
                     doFillArea(fillQ, [af], af.fillang.angle + 45, spacing, newfill);
-                    top.fill_lines_ang.list.push(af.fillang.angle + 45);
-                    top.fill_lines_ang.poly.push(af.clone());
+                    // top.fill_lines_ang.list.push(af.fillang.angle + 45);
+                    // top.fill_lines_ang.poly.push(af.clone());
                 }
             }
         }