Secure non-homologous page cross-domain communication method

The invention belongs to the technical field of network security, and particularly relates to a secure non-homologous page cross-domain communication method, which comprises the following steps of: 1, establishing a broadcast data monitoring event in a page I; 2, obtaining an instance of a window object where a page 2 is located on the page 1; 3, issuing different types of broadcasts on the second page to trigger the first page to monitor an event; 4, performing safety verification and broadcast data verification between the first page and the second page; 5, performing broadcast encryption between the first page and the second page, wherein the encryption process penetrates through the whole communication process. The invention provides a secure non-homologous page cross-domain communication method, which realizes cross-domain communication of pages among different domains, can ensure the security of the communication process, and can support enterprises to design and construct secure, effective and low-cost