headers HTTP header: Sec-Fetch-Mode Global usage 93.69% + 0% = 93.69% IE ❌ 6 - 10: Not supported ❌ 11: Not supported Edge ❌ 12 - 18: Not supported ✅ 79 - 130: Supported ✅ 131: Supported Firefox ❌ 2 - 89: Not supported ✅ 90 - 132: Supported ✅ 133: ...