IE required minimum number of bytes in file size in order to display the current 404 page, if this requirement is not meet it will display default 404 page. IE required minimum number of bytes in file size in order to display the current 404 page, if this requirement is not meet it will display default 404 page. IE required minimum number of bytes in file size in order to display the current 404 page, if this requirement is not meet it will display default 404 page.