Controlling Communication Within a Container Document

• US 20080263566A1
• Filed: 04/18/2007
• Published: 10/23/2008
• Est. Priority Date: 04/18/2007
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Buerge, Michael, Seefeld, Bernhard
• Granted Patent: US 7,958,516 B2
• Time in Patent Office: Days
• US Class Current: 719/317
• CPC Class Codes: G06F 16/00 Information retrieval; Database structures therefor; File system structures therefor
• CPC Class Codes: G06F 9/544 Buffers; Shared memory; Pipes

Abstract

A system allows modules associated with different domains to communicate, such as within a container document. To transfer payload data from the first module associated with a first domain to a second module associated with a different domain, the first module adds the payload data as a text string to the URL of a transport module associated with the second domain. This way, the second module may directly access the modified transport module to obtain the payload data from its URL. The second module may likewise add other payload data as a text string to the URL of another transport module associated with the first domain, thereby enabling communication from the second domain to the first.

Claims

1. A method for facilitating communication between modules associated with different domains in a browser application, the method comprising:

creating a transport module associated with a second domain, the transport module having a URL reference;

adding payload data from a first module associated with the first domain to a portion of the URL reference of the transport module; and

reading the payload data by a second module associated with the second domain.

2. The method of claim 1, wherein the first and second modules comprise inline frames contained within a container document.

3. The method of claim 1, wherein the transport module comprises an empty inline frame.

4. The method of claim 1, wherein the payload data is added to a fragment ID following a hash symbol in the URL of the transport module.

5. The method of claim 1, further comprising:

adding payload data from the second module to a portion of the URL reference of a transport module associated with the first domain; and

reading the payload data in the transport module associated with the first domain by the first module.

6. The method of claim 1, further comprising:

periodically polling the transport module by the second module, the polling at least in part checking the domain associated with the transport module.

7. The method of claim 6, wherein the frequency of the polling is dynamically adjusted based at least in part on a time since a previous communication with the first module.

9. The computer program product of claim 1, wherein the first and second modules comprise inline frames contained within a container document.

10. The computer program product of claim 1, wherein the transport module comprises an empty inline frame.

11. The computer program product of claim 1, wherein the payload data is added to a fragment ID following a hash symbol in the URL of the transport module.

12. The computer program product of claim 1, further containing computer program code for:

adding payload data from the second module to a portion of the URL reference of a transport module associated with the first domain; and

reading the payload data in the transport module associated with the first domain by the first module.

13. The computer program product of claim 1, further containing computer program code for:

periodically polling the transport module by the second module, the polling at least in part checking the domain associated with the transport module.

14. The computer program product of claim 13, wherein the frequency of the polling is dynamically adjusted based at least in part on a time since a previous communication with the first module.

8. A computer program product for facilitating communication between modules associated with different domains in a browser application, the computer program product comprising a computer-readable medium containing computer program code for performing the method comprising:

creating a transport module associated with a second domain, the transport module having a URL reference;

adding payload data from a first module associated with the first domain to a portion of the URL reference of the transport module; and

reading the payload data by a second module associated with the second domain.