HTML Image cache

I need to clear the html image cache that mail uses. I get a newsletter with a header image but always see the old image if they have updated it.
How can I fix this ?
TIA

Ok, I found out how to do it, not sure if it will cause any other issues but you have to delete this file
User/library/caches/com.apple.mail/Cache.db

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HTML images not visible in Mail

All of a sudden images are not being displayed in Mail. I've checked the option on displaying html images in mail preferences. How do I get images in mail messages to display?

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, or by corruption of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including sound output and Wi-Fi on certain iMacs. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

JE as Image Cache

Folks,
We're considering using JE as an image cache for a large(ish) number of small(ish) images. The question is whether or not JE would be fit for this particular use. The requirements are simple: store a single Java object via DPL in the form:
class Image{
@PrimaryIndex
String uuid;
@SecondaryIndex(...)
Date lastModified;
@SecondaryIndex(...)
Date expires;
byte[] data;
We expect to store 50K or so images with data[] sizes ranging from 1k to 50k. Any reasons why JE might not be a fit? We've stored blocks of XML in the past without issue, so don't expect issues here.
Regards,
-tyson

Tyson,
You're probably familiar with this already, but JE is agnostic about data types at the actual storage level. Only the DPL layer understands what type the data is. So in this case, the major factor to consider is the size of the data.
We have certainly heard of uses cases with data in the 1 - 50K range, and it should be possible, but I'll explain the factors to consider in terms of the size of the data.
1. Because of JE's append only storage architecture, an update to a record is a new, fully size copy of the record. So if a large data record is updated a lot, the log does grow. Of course, those older versions are obsolete, and the log cleaner removes them, but it results in log file growth and compression (cleaning) in larger degrees of granularity.
2. In general, JE pulls data records in their entirety into cache. So a large data record takes more room, the cache fits fewer data records, and there may be more eviction activity going on to maintain the cache. One exception is the "Partial" option when fetching data entries, described in the Cursor javadoc under "Using Partial DatabaseEntry Parameters" here: http://www.oracle.com/technology/documentation/berkeley-db/je/java/com/sleepycat/je/Cursor.html. It lets you fetch only the key portion of a data record and avoid pulling the data portion into the cache, when using READ_UNCOMMMITED, and can be useful in some cases.
3. We don't yet provide any streaming APIs, which would be handy for really large records.
That's what I can think of! Maybe folks who have been storing large records can speak to their experience. But we do know that people do store records that large in JE.
Regards,
Linda

Image cache not working with Firefox and apex

Hi,
I'd like to cache all my images to save page rendering time and bandwidth because my images are all static and never change.
I use the John Scott's caching technique Link: [http://jes.blogs.shellprompt.net/2007/05/18/apex-delivering-pages-in-3-seconds-or-less/], in a few words this technique consists of adding a header line "Expires: date in the future" in the http response.
It works very well in IE, the images are cached and the same image can be accessed several times (within the same session or in different sessions) without issuing an http request to the server each time.
with Firefox it does not work, the same image is asked again and again to the server (i'm using FF 3.5 and APEX 3.2).
- Is it a date format problem? no, because when i type about:cache in FF, i can find my image in the cache with an expire date in the future.
The weird thing here is that the counter is incremented each time u request the image, so FF knows it is in the cache and even if the expire date is in the future, FF asks it again to the server.
- Is it a FF bug? If u read the http specs or if u google a little, u can come to the conclusion that FF does not follow the standards,
but... images.google.com for example manages to get its images cached with FF.
They use an http response header "cache-control: public, max-age=604800".
I tried the same and all kinds of combinations but without success.
When i compare my image with the one from google in the FF cache, they both have the same attributes.
- It's not an apex issue neither because it works with IE, most probably an incompatibility between apex and FF?
Maybe the use of cookie? or the http request (not the response) containing "cache-control: max-age=0"?
I've found so far 2 half solutions:
1) use ETag and modified date, see the Tyler Muth's note Link: [http://tylermuth.wordpress.com/2008/02/04/image-caching-in-plsql-applications/].
with this technique FF continues to send request each time but the answer is shorter because it's just a "304 not modified" instead of "200 OK" (200 response is bigger as it contains the image).
it's better than nothing but you still have 1 request + 1 response for nothing.
Another problem is that you need SYS access to implement this, which is not possible on an hosted server. (note that for images from the file system it is already foreseen by apex 3.1, Tyler's note is for images from the db)
2) if you preload the image (using myimage=new Image();myimage.src='...';), then there is max 1 request per browser session.
There are 2 minor issues here:
- no caching across sessions
- if u don't want to preload all the images (example a page with lots of thumbnails, when user clicks it show a bigger image, in that case the thumbnails can be preloaded but overkill for the big images), then you need to load the image, wait until the image has loaded before displaying it, it does not slow down the execution, but requires some extra JS.
I'm not asking anyone to investigate it, i can live with the 2 workarounds,
but just in case someone encountered the same problem and already fixed it.
Let me know if u managed to use the John Scott's technique with Firefox. (U can use Firebug to see the http traffic)
Thx
Tim

Hi Anshul, hope these help. Let me know if you need to see anything else.
Best,
Menu Settings:
Tab Hyperlink:
Label Text with with hyper link option not available (works as a hyperlink in chrome and IE though):
Thanks for the help in advance!

Some email images do not show while using the icloud web app. I can see the images on my IOS devices and in gmail but I only see a small gray box in the icloud web mail app. Load HTML images is checked in preferences.

Some email images do not show while using the icloud web app. I can see the images on my IOS devices and in gmail but I only see a small gray box in the icloud web mail app. Load HTML images is checked in preferences. Is there a solution to this issue?

I've seen the opposite issue. My wife recieved an email with jpg attachments. She couldn't see or print them on her iPhone 4S but they showed up fine in iCloud or in the mail app. I had her forward the email to herself and then they showed up. I assume there is an issue with how Apple is processing the attachments and resending causes them to get reformatted in a way that makes them easier to handle.
So yeah. Seems like some bugs. Hope Apple fixes them soon.

Messages Opening Image Cache Folder when Sending Files

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Thanks!

Hi,
I don't have an answer for this one.
Are you finding those items are zipped before Sending ?
Where are they from?
I get them zipped when sending a pic dragged from a Browser or from iPhoto but not from the Desktop or a Finder window.
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I urgently need to disable the image cache in Mail 7. How can I do that?
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Mail 7 displays the same image in every mail until I restart it, it obviously displays a cached file instead of the original image.
Where is the Mail-cache-file? Can I writeprotect it?

I think Private Browsing might be what you are looking for,
have a look here for more info
[https://support.mozilla.com/en-US/kb/Private%20Browsing]
also not sure how much access you have on a company workstaion to change settings in Firefox
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I have read that Symbian^3 has for performance reasons aggressive image caching feature. But in this case this causes a real nasty bug!
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I have found a solution.
In the IMG src tag we had been using /images/gfx/image.gif
By changing this to /./images/gfx/image.gif the images are no longer cached and update immediately when changed.
PQ

Mail attachment image caching problem

Using C7-00 and Mail for Exchange with up to date software. I received two Mobile Boarding Pass emails from Lufthansa for my flights. These emails contain barcode.gif as an attachment that one can show at the gate when boarding. Now the two emails contain attachment with same name (barcode.gif) and the images are equal in size too. The problem is that for the second mail the phone shows the attachment of the first email!
I have read that Symbian^3 has for performance reasons aggressive image caching feature. But in this case this causes a real nasty bug!
- Juha

I have found a solution.
In the IMG src tag we had been using /images/gfx/image.gif
By changing this to /./images/gfx/image.gif the images are no longer cached and update immediately when changed.
PQ

Cannot view html images from only one sender

I have the option set to view remote HTML images. I have junk filtering turned off. I have reset my junk mail filters just in case that was the issue.
There is email from one sender that is a problem. Instead of images I get the blue squares with question marks. I know the images are available because I can view them if I go directly to my Web based email account.
Additional info - the account is IMAP. It makes no difference if I copy the message to a folder stored on my Mac.

I figured it out. I had adjusted the height of the input element to a height that did not work well with the padding. Once I removed the height style and adjusted the padding I got the size I wanted and can see the text as it should be.
Thanks for your help forgottengods!

Exporting clickdummy as "html + images" creates too many gifs

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Do I have to reduce the number of sclices so that there are fewer gifs in the image folder? I would have to cick off some hover states... or is there any other way to reduce the number of images the page is build of?
Thanks for any help and advice!
Mari

OK, thanks, that already helped me. But unfortunately I didn't manage to create these html-text slices. There are just green solid boxes where I can enter html text but I dont know how to transfer my different text areas in combination with images to html + image slices. Do I have to slice up the whole page?
After trying and studying the article you mentioned above I exported as Css and Images and now my page consists of html text and some images, looks nice and is edidable in Dreamweaver. But with this method I loose all the hover functionality. In which direction should I work on?
A export as Css and Images and try to insert the hover and swap-image functionality manually in Dreamweaver or
B export as Html and Images and try to learn how to add html text slices?
Thanks again!
Mari

Does WDA support HTML Image Maps?

How to implement HTML image maps in Web Dynpro for ABAP?
Is the usemap (and related area shapes) available?
What I mean is explained by the following example:
<body>
<img src="trees.gif" usemap="#green" border="0">
<map name="green">
<area shape="polygon" coords="19,44,45,11,87,37,82,76,49,98" href="http://www.trees.com/save.html">
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<area shape="circle" coords="68,211,35" href="http://www.trees.com/plantations.html">
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</body>
Thanks

Use IFrame UI element (if exists - hope yes) and link to it an HTML file with only your image-map.
If the image-map change by user, you must find the way to create the HTML in a dynamic way.
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Web template image cache

goodmorning everybody,
does anybody know where I can clear the image cache when running a web template.. It keeps displaying the old image even though I replaced the image with a new one in the mime repository...

hi Joris,
try
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- delete browser cache (Internet Explorer or other)
and
- SMICM->go to->HTTP server cache->invalidate->golbal in system
or transaction rsrt -> cache monitor -> delete
- transaction RSRCACHE
oss note 456068
Mime Repository Icons
How to clear Cache in SAP BW
hope this helps.

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Hi
I'm trying to implement Image Caching on an Oracle XE database following Tyler Muth's blog post http://tylermuth.wordpress.com/tag/oracle-plsql-images-caching/
Has anyone managed to implement this successfully?
I've run the following as sys :
begin
DBMS_EPG.SET_DAD_ATTRIBUTE (
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   attr_value => 'HTTP_IF_NONE_MATCH');
DBMS_EPG.SET_DAD_ATTRIBUTE (
   dad_name    => 'APEX',
   attr_name   => 'cgi-environment-list',
   attr_value => 'IF_MODIFIED_SINCE');
end;
/And my function to download the images includes the following:
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    v_etag_str := lpad(p_file_id,2,0)||to_char(v_date_last_modified,'DDMMYYYYHH24MISS');
    if v_etag_head = v_etag_str then
      owa_util.status_line(
      NSTATUS         => 304,
      CREASON         => 'Not Modified',
      BCLOSE_HEADER   => true);
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      owa_util.mime_header(v_mimetype, FALSE );
      htp.p('Date: ' ||to_char(sysdate,'Dy, DD Mon RRRR hh24:mi:ss')||' GMT');
      htp.p('Content-length: '||v_file_length);
      htp.p('Content-Disposition: inline; filename="'||v_filename||'"');
      htp.p('Last-Modified: '||to_char(v_date_last_modified,'Dy, DD Mon RRRR hh24:mi:ss')||' GMT');
      htp.p('ETag: '||v_etag_str);
      htp.p('Expires: ' ||to_char(sysdate+(1/12),'Dy, DD Mon RRRR hh24:mi:ss')||' GMT');
      htp.p('Cache-Control: max-age=300');
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      wpg_docload.download_file(v_blob);
   end if;However, owa_util.get_cgi_env('HTTP_IF_NONE_MATCH') always returns null. I've checked using LiveHTTPHeaders and the If-None-Modified is being sent. This is running on a local Oracle XE database (using the EPG), running APEX 4.0.0.00.46 and Windows 7.
I've searched the forum and there are four other posts that refer to HTTP_IF_NONE_MATCH, however these haven't helped. If anyone has any ideas or needs any more information, please let me know. And if you have got this working I'd love to know how, even just so I know it's possible!!
Thanks for any help.
Sara

Bump.
Has anyone managed to implement this successfully? Is there anything I can check? Or is this a bug with the EPG?
This is causing us massive problems and I can't see what I've done wrong. Any help is really appreciated.
Thanks
Sara

Why Mail can´t load html images when it should?

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not at all. It happens since I´ve upgraded to Mountain Lion a few days back

HTML Image cache

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