iframe.contentWindow.document

->iframe.contentWindow.document.documentElement

->iframe.contentWindow.document.documentElement.textContent (W3)

->iframe.contentWindow.document.documentElement.innerText (IE)

->iframe.contentWindow.document.XMLDocument

->iframe.contentWindow.document.XMLDocument.text

| | | |

contentWindow.document |

.documentElement |

.textContent |

.innerText |

.XMLDocument |

.text | |

Trident | | | | | | | | | | |

ie6 | |

[object] |

[object] |

undefined |

content |

[object] |

content | | |

ie7 | | | | | | | | | | |

maxthon |

[object] |

[object] |

undefined |

content |

[object] |

content | | | |

360se |

[object] |

[object] |

undefined |

content |

[object] |

bug | | | |

原生 | | | | | | | | |

ie8 | |

[object HTMLDocument] |

[object HTMLHtmlElement] |

undefined |

content |

[object] |

content | | |

ie9 | |

[object Document] |

[object Element] |

content |

undefined |

undefined |

× | |

gecko | | |

[object XMLDocument] |

[object Element] |

content |

undefined |

undefined |

× | |

webkit | | |

[object Document] |

[object Element] |

content |

undefined |

undefined |

× | |

presto | | |

[object XMLDocument] |

[object Element] |

content |

undefined |

undefined |

× | | | | | | | | | | |