- From: Edward Gerhold <edward.gerhold@googlemail.com>
- Date: Fri, 1 Apr 2011 15:56:42 +0200
Dear Working Group, Here is the document behind the link i posted. Application CacheEnhancements to the Caching FunctionsStoring dynamic, generated and like before, static Data in the Cache*Abstract* With this document i want to persuade the whatwg and the W3C to enhance the application cache of HTML5, before the standard is seeming to be ready, and to prevent to suggest it for HTML6, because a nonimplementation. Dynamic Data The appCache is not ready for storing dynamic data. This could be done by the user by simply pressing a "cache this" button or a link or some other function in a script. There MUST be the possibility to add urls to the cache. There MUST be the possibility to remove, modify urls in the cache and to iterate through, enumerate the cache. The functions SHOULD or MUST fire a function-named event, e.g. ADD, REMOVE, MODIFY, LISTING. The events MUST carry the actual data, url, index number, possible id being transmitted with. Extensions to the appCache Interface .add(url, data) - append a new element to the list .insert(id, data) - move from pos all elements from the last on to the insertion pos downwards (add last element as new) .remove(id | url) - copy the next element to the pos, continue and remove the last from the list .modify(id | url, data) - change the element data in the list don??t forget to save to disk Enumeration of the Cache returns active element seeked to with index number, url and possibly id and data .begin() - start pointer .pos() - doesnt increse pointer .end() - end pointer .list() - increase pointer .reverse() - decrease pointer I don??t know WebIDL, hope you can read it as and like WebIDL Removing the Master File from the Cache Explicitly remove like above and the cache will behave to cache it again. Explicitly add the file to the manifest NETWORK: index.php (Variant 1, whitelist), NETWORK: MASTER (Variant 2, whitelist parser), or CACHE MANIFEST NOMASTER (first line). Not caching the master file, means loading the file everytime from the network. *New:*You can cache scripts, images, stylesheets, media, and with the javascript enhancement you can modify the cache and load whatever the user desires to the cache. You can now load, what the user desires from cache. Arguments having the functions above and the Master File cached The user may choose, what to cache. You may choose, what to cache. Security considerations Malicious Pages writing malicious caches? Isn??t there detection for most of? Something like this is needed and the same-/cross-origin policy already used. I write down no new suggestions for changes to the security in this document. It is only for the new (or remaining) Cache Functions (for HTML5). Appendix - Caching DOM tree branches with url identifiers, and root element id Browsers COULD save parts of the dom tree with possible id in the cache, too. I hope this could become discussed again. I hope the features could be set onto the vendors to do list, by the HTML5 specification, before HTML5 is done. Other documents Programmable HTTP Caching & Serving, with an immediate function and a local server and the applicationCache2 Interfaces. The enhancements suggested here are easier to learn and use. By the use of applicationCache2 in the other document, the functions here could stay in applicationCache. Reason for this document. Please let my cache my content managers, as far as i prepare the urls to be used by my script for caching, on the users demands. With friendly regards, *Edward Gerhold* With frienly regards Edward Gerhold
Received on Friday, 1 April 2011 06:56:42 UTC