For an application assignment, HKEY_CLASSES_ROOT\ ProgIDĪssign the DefaultIcon subkey a default value of type REG_SZ that specifies the fully qualified path for the file that contains the icon.For a file-type assignment, HKEY_CLASSES_ROOT\.This is at least a suggestion not mentioned in the OP's question that he say's he already tried.Icons can also be assigned on an application-specific basis.Ĭreate a subkey named DefaultIcon in one of the following two locations: Probably not here because it will require server side scripting. (Carefully, remove only images and files when possible or warn them of data removal due to the process) My 2nd "suggestion" would be to notify the user of changes and direct them to clear their cache. So on this image's onload use serverside to decipher if it is not the last image when it is loaded go to the next image.Ĭ.1a) This would mean that our list may need more information per image and I think the obvious one is the possible need of some server side script to adjust the headers as required by each image to minimize the footstep of re-caching changed site images.
#Replace scriptcase icon manual#
So my 1st "suggestion", as the OP asked for, is this list theory.Ī.) Have a list that our dynamic and manual changed image urls can be stored.ī.) Set a dead date where the catch will be reset and the list will be truncated regardless.Ĭ.0) Check list on site entrance vs browser via i frame which could be ran in the background with a shorter cache header set to re-cache them all against the farthest date on the list or something of that nature.Ĭ.1) Using the Iframe or ajax/xhr request I'm thinking you could loop through each image of the list refreshing the page to show a different image and check the cache against it's own modified date. When would you take the list down and how would you know if everyone has the latest version who would visit again? From a logical stance telling the browser to replace it's cached images for each changed image on a list since a certain date is ideal BUT. I just want to point out that even if there is a way it is going to be difficult to implement. Since most, if not all, answers and comments here are copies of parts the question, or close enough, I shall throw my 2 cents in. If the images do change, they'll get a new timestamp (which they'll need to for caching reasons), but then that timestamp will remain valid forever until someone replaces the image again. If the images don't change, neither will the timestamp, so everything will be cached "under normal circumstances".
![replace scriptcase icon replace scriptcase icon](https://filehonor.com/wp-content/uploads/2018/08/ScriptCase-Review-620x400.png)
I hate to be the bearer of bad news, but you don't have any other options. Why can't you use a timestamp (or etag, which amounts to the same thing)? Remember you should be using the timestamp of the image file itself, not just Time.Now. I CANNOT use the META tag method OR the timestamp method, because I want all of the images cached under normal circumstances. I can't imagine it'd be a good idea on part of browser developers to let you go poking around in their cache, and there's no motivation that I can see for them to ever implement such a feature. In all seriousness, I've never heard of such a thing existing, and I doubt there is an API for it.
![replace scriptcase icon replace scriptcase icon](https://www.camdevelopment.com/keysaver/images/icon.gif)
If you have Apache and mod_headers or mod_expires then create. It pollutes caches with useless files and forces useful files to be purged sooner. Random URL for short-lived files is bad idea. If your image changes very often (every few minutes, or even on each request), then send Cache-control: no-cache or Cache-control: max-age= xx where xx is the number of seconds that image is "fresh".
![replace scriptcase icon replace scriptcase icon](https://static.filehorse.com/screenshots/developer-tools/scriptcase-screenshot-02.png)
#Replace scriptcase icon update#
If you update images from time to time, allow them to be cached forever and use a new filename (with a version, hash or a date) for the new image - it's the best solution for long-lived files. To control caching you could change URLs each time their content changes. Whatever you do to the HTML document, it won't apply to images.
![replace scriptcase icon replace scriptcase icon](https://www.codegrepper.com/codeimages/ionic-button.png)
In fact, you shouldn't try use it for controlling cache at all (by the time anything reads content of the document, it's already cached).