externalExts property
Implementation
static Map<String, String> externalExts = {
"jpg": "image/jpeg",
"jpeg": "image/jpeg",
"png": "image/png",
"gif": "image/gif",
"svg": "image/svg+xml",
"tif": "image/tiff",
"tiff": "image/tiff",
"webp": "image/webp",
};