Browser compatibility checking of a web page source document that generates one or more web page is implemented on one or more servers. In one embodiment, by way of example only hash values are calculated in nth iterations for accumulative data chunks extracted from an object requested for in-line deduplication. A surface of the smooth curved sloping surface region has a texture which is different from a texture of the cutting surface. This fire retardant polyamide composition is excellent in fire retardant properties, flowability, toughness and reflow heat resistance.