PARTIAL WEBSITE OPTIMIZATION FOR A WEB PUBLISHER

• US 20150143224A1
• Filed: 11/15/2013
• Published: 05/21/2015
• Est. Priority Date: 11/15/2013
• Status: Active Grant

• Current Assignee: Akamai Technologies, Inc.
• Original Assignee: Instart Logic Incorporated (Akamai Technologies, Inc.)
• Inventors: Kennedy, Brian
• Granted Patent: US 9,697,189 B2
• Time in Patent Office: Days
• US Class Current: 715/234
• CPC Class Codes: G06F 16/957 Browsing optimisation, e.g. caching or content distillation
• CPC Class Codes: G06F 16/9574 of access to content, e.g. by caching
• CPC Class Codes: G06F 16/9577 Optimising the visualization of content, e.g. distillation of HTML documents
• CPC Class Codes: G06F 40/123 Storage facilities
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]
• CPC Class Codes: G06F 40/149 Adaptation of the text data for streaming purposes, e.g. Efficient XML Interchange [EXI] format

Abstract

A method of delivering webpages to a browser includes delivering a first webpage using a streaming protocol that optimizes delivery of content of the first webpage where the first webpage includes information that may persist in a browser cache; delivering a second webpage without using the streaming protocol where the second webpage and the first webpage both reference a first resource; and forcing revalidation of the first resource stored on the browser cache.

Claims

1. A method of delivering webpages to a browser, comprising:

delivering a first webpage using a streaming protocol that optimizes delivery of content of the first webpage, wherein the first webpage includes information that may persist in a browser cache;

delivering a second webpage without using the streaming protocol, the second webpage and the first webpage both referencing a first resource; and

forcing revalidation of the first resource stored on the browser cache.

2. The method of claim 1, wherein forcing revalidation of the first resource stored on the browser cache comprises:

forcing revalidation of the first resource stored on the browser cache so that the first resource is provided to the browser without using the streaming protocol.

3. The method of claim 1, wherein the first resource comprises a first image.

4. The method of claim 3, wherein delivering a first webpage using a streaming protocol that optimizes delivery of content of the first webpage comprises:

delivering the first webpage using the streaming protocol where the first image is streamed to the browser and the streamed image may persist in the browser cache.

5. The method of claim 4, further comprising:

receiving a revalidation request of the first image; and

delivering the first image having a full resolution to the browser for display on the second webpage.

6. The method of claim 1, wherein forcing revalidation of the first resource stored on the browser cache comprises:

receiving a request for the first resource upon delivery of the second webpage; and

sending a response for the first resource having a modified cache control response header, the modified cache control response header having one or more cache control parameters set to values that cause the browser to revalidate the first resource stored on the browser cache.

7. The method of claim 6, wherein sending a response for the first resource having a modified cache control response header comprises:

sending a response for the first resource having a modified cache control response header including a cache-control directive having a value of “

max-age=0, must-revalidate”

, a last-modified parameter with a previous value removed, and an ETag parameter with an identifier added to a previous value.

8. A system for delivering webpages to a browser, comprising:

a processor; and

a memory coupled with the processor, wherein the memory is configured to provide the processor with instructions which when executed cause the processor to;

deliver a first webpage using a streaming protocol that optimizes delivery of content of the first webpage, wherein the first webpage includes information that may persist in a browser cache;

deliver a second webpage without using the streaming protocol, the second webpage and the first webpage both referencing a first resource; and

force revalidation of the first resource stored on the browser cache.

9. The system recited in claim 8, wherein the memory is further configured to provide the processor with instructions which when executed cause the processor to:

receive a request for the first resource upon delivery of the second webpage; and

send a response having a modified cache control response header, the modified cache control response header having one or more cache control parameters set to values that cause the browser to revalidate the first resource stored on the browser cache

10. The system recited in claim 9, wherein the memory is further configured to provide the processor with instructions which when executed cause the processor to:

send a response having a modified cache control response header including a cache-control directive set to “

must-revalidate,”

a last-modified parameter with previous value removed, and an ETag parameter with a suffix added to the previous value.

11. A computer program product for delivering webpages to a browser, the computer program product being embodied in a tangible computer readable storage medium and comprising computer instructions for:

delivering a first webpage using a streaming protocol that optimizes delivery of content of the first webpage, wherein the first webpage includes information that may persist in a browser cache;

delivering a second webpage without using the streaming protocol, the second webpage and the first webpage both referencing a first resource; and

forcing revalidation of the first resource stored on the browser cache.

12. The computer program product recited in claim 11, further comprising computer instructions for:

receiving a request for the first resource upon delivery of the second webpage; and

sending a response for the first resource having a modified cache control response header, the modified cache control response header having one or more cache control parameters set to values that cause the browser to revalidate the first resource stored on the browser cache.

13. The computer program product recited in claim 12, further comprising computer instructions for:

sending a response for the first resource having a modified cache control response header including a cache-control directive having a value of “

max-age=0, must-revalidate”

, a last-modified parameter with a previous value removed, and an ETag parameter with an identifier added to a previous value.

14. A method of delivering webpages to a browser, comprising:

receiving a request for a first webpage;

to receiving a request for a first resource referenced by the first webpage;

accessing a referrer address to determine an originating webpage from which the first webpage originates; and

in response to a determination that the originating webpage is configured to optimize delivery of content, sending a response with a modified cache control header to instruct the browser to revalidate the first resource stored on the browser cache.

15. The method of claim 14, further comprising:

receiving a validation request for the first resource from the browser;

validating the first resource; and

sending the first resource in full resolution to the browser.

16. The method of claim 14, further comprising:

in response to a determination that the originating webpage is not configured to optimize delivery of content, sending a response with a standard cache control header to instruct the browser to fetch the first resource from a browser cache.

17. The method of claim 14, wherein the first resource comprises a first image.

18. The method of claim 14, wherein sending a response with a modified cache control header to instruct the browser to revalidate the first resource stored on the browser cache comprises:

sending a response for the first resource having a modified cache control response header, the modified cache control response header having one or more cache control parameters set to values that cause the browser to revalidate the first resource stored on the browser cache.

19. The method of claim 18, wherein sending a response for the first resource having a modified cache control response header comprises:

sending a response for the first resource having a modified cache control response header including a cache-control directive having a value of “

max-age=0, must-revalidate”

, a last-modified parameter with a previous value removed, and an ETag parameter with an identifier added to a previous value.

20. A system for delivering webpages to a browser, comprising:

a processor; and

a memory coupled with the processor, wherein the memory is configured to provide the processor with instructions which when executed cause the processor to;

receive a request for a first webpage;

receive a request for a first resource referenced by the first webpage;

access a referrer address to determine an originating webpage from which the first webpage originates; and

in response to a determination that the originating webpage is configured to optimize delivery of content, send a response with a modified cache control header to instruct the browser to revalidate the first resource stored on the browser cache.