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Posted to dev@cordova.apache.org by David Lewis <le...@gmail.com> on 2013/04/25 20:46:09 UTC
Question about caching
I've got a Cordova 2.6 app on iOS 6 that uses ~/Documents as the webroot
for updating purposes. Because of the JS load, when the index.html is
reloaded after it is changed (delete and copy from the update), not
everything is loaded again.
I don't have the details for it, but there is a display parameter that
should change when the new page is loaded. So far, the only way to achieve
this is through resetting the entire app through user intervention.
I've seen reference to iOS Safari caching POST, which we are certainly
using, but the data in question is generated from local files.
Is there a way to reset the cache when the index.html is reloaded?
Thanks,
David
Re: Question about caching
Posted by Andrew Grieve <ag...@chromium.org>.
You could try appending random query parameters to bust caching.
On Thu, Apr 25, 2013 at 4:52 PM, David Lewis <le...@gmail.com> wrote:
> Thanks.
> On Apr 25, 2013 4:19 PM, "Shazron" <sh...@gmail.com> wrote:
>
> > This is more of an Objective-C question now rather than a Cordova API
> one.
> > Not sure if I have any answers.
> >
> >
> > On Thu, Apr 25, 2013 at 1:15 PM, David Lewis <le...@gmail.com> wrote:
> >
> > > I call removeAllCachedResponses before loading the new index.html.
> > >
> > > The page does appear to reload but we have files that load files and
> > files
> > > that get injected into divs. The updated files are not injected. The
> old
> > > cached version is used instead.
> > >
> > >
> > > NSString *reloadTarget = [docDir stringByAppendingPathComponent:[
> > > NSString stringWithFormat:@"/index.html"]];
> > >
> > > [[NSURLCache sharedURLCache] removeAllCachedResponses];
> > >
> > > [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL
> > > fileURLWithPath:reloadTarget]]];
> > >
> > >
> > > On Thu, Apr 25, 2013 at 3:57 PM, Shazron <sh...@gmail.com> wrote:
> > >
> > > > We set up a cache in AppDelegate.m[1], and I suppose you could hook
> > into
> > > > CDVPageDidLoadNotification[2] in your own plugin, then clear the
> > > cache[3]:
> > > >
> > > > e.g.
> > > > [[NSURLCache sharedURLCache] removeAllCachedResponses]
> > > >
> > > >
> > > > [1]
> > > >
> > > >
> > >
> >
> https://github.com/apache/cordova-ios/blob/c6e71147386d4ad94b07428952d1aae0a9cbf3f5/bin/templates/project/__TESTING__/Classes/AppDelegate.m#L46-L53
> > > > [2]
> > > >
> > > >
> > >
> >
> https://github.com/apache/cordova-ios/blob/9facafb4f96c7f81097a9424505398821589ba54/CordovaLib/Classes/CDVPlugin.h#L26
> > > > [3]
> > > >
> > > >
> > >
> >
> https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSURLCache_Class/Reference/Reference.html
> > > >
> > > >
> > > >
> > > > On Thu, Apr 25, 2013 at 11:46 AM, David Lewis <le...@gmail.com>
> > wrote:
> > > >
> > > > > I've got a Cordova 2.6 app on iOS 6 that uses ~/Documents as the
> > > webroot
> > > > > for updating purposes. Because of the JS load, when the index.html
> is
> > > > > reloaded after it is changed (delete and copy from the update), not
> > > > > everything is loaded again.
> > > > >
> > > > > I don't have the details for it, but there is a display parameter
> > that
> > > > > should change when the new page is loaded. So far, the only way to
> > > > achieve
> > > > > this is through resetting the entire app through user intervention.
> > > > >
> > > > > I've seen reference to iOS Safari caching POST, which we are
> > certainly
> > > > > using, but the data in question is generated from local files.
> > > > >
> > > > > Is there a way to reset the cache when the index.html is reloaded?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > David
> > > > >
> > > >
> > >
> >
>
Re: Question about caching
Posted by David Lewis <le...@gmail.com>.
Thanks.
On Apr 25, 2013 4:19 PM, "Shazron" <sh...@gmail.com> wrote:
> This is more of an Objective-C question now rather than a Cordova API one.
> Not sure if I have any answers.
>
>
> On Thu, Apr 25, 2013 at 1:15 PM, David Lewis <le...@gmail.com> wrote:
>
> > I call removeAllCachedResponses before loading the new index.html.
> >
> > The page does appear to reload but we have files that load files and
> files
> > that get injected into divs. The updated files are not injected. The old
> > cached version is used instead.
> >
> >
> > NSString *reloadTarget = [docDir stringByAppendingPathComponent:[
> > NSString stringWithFormat:@"/index.html"]];
> >
> > [[NSURLCache sharedURLCache] removeAllCachedResponses];
> >
> > [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL
> > fileURLWithPath:reloadTarget]]];
> >
> >
> > On Thu, Apr 25, 2013 at 3:57 PM, Shazron <sh...@gmail.com> wrote:
> >
> > > We set up a cache in AppDelegate.m[1], and I suppose you could hook
> into
> > > CDVPageDidLoadNotification[2] in your own plugin, then clear the
> > cache[3]:
> > >
> > > e.g.
> > > [[NSURLCache sharedURLCache] removeAllCachedResponses]
> > >
> > >
> > > [1]
> > >
> > >
> >
> https://github.com/apache/cordova-ios/blob/c6e71147386d4ad94b07428952d1aae0a9cbf3f5/bin/templates/project/__TESTING__/Classes/AppDelegate.m#L46-L53
> > > [2]
> > >
> > >
> >
> https://github.com/apache/cordova-ios/blob/9facafb4f96c7f81097a9424505398821589ba54/CordovaLib/Classes/CDVPlugin.h#L26
> > > [3]
> > >
> > >
> >
> https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSURLCache_Class/Reference/Reference.html
> > >
> > >
> > >
> > > On Thu, Apr 25, 2013 at 11:46 AM, David Lewis <le...@gmail.com>
> wrote:
> > >
> > > > I've got a Cordova 2.6 app on iOS 6 that uses ~/Documents as the
> > webroot
> > > > for updating purposes. Because of the JS load, when the index.html is
> > > > reloaded after it is changed (delete and copy from the update), not
> > > > everything is loaded again.
> > > >
> > > > I don't have the details for it, but there is a display parameter
> that
> > > > should change when the new page is loaded. So far, the only way to
> > > achieve
> > > > this is through resetting the entire app through user intervention.
> > > >
> > > > I've seen reference to iOS Safari caching POST, which we are
> certainly
> > > > using, but the data in question is generated from local files.
> > > >
> > > > Is there a way to reset the cache when the index.html is reloaded?
> > > >
> > > > Thanks,
> > > >
> > > > David
> > > >
> > >
> >
>
Re: Question about caching
Posted by Shazron <sh...@gmail.com>.
This is more of an Objective-C question now rather than a Cordova API one.
Not sure if I have any answers.
On Thu, Apr 25, 2013 at 1:15 PM, David Lewis <le...@gmail.com> wrote:
> I call removeAllCachedResponses before loading the new index.html.
>
> The page does appear to reload but we have files that load files and files
> that get injected into divs. The updated files are not injected. The old
> cached version is used instead.
>
>
> NSString *reloadTarget = [docDir stringByAppendingPathComponent:[
> NSString stringWithFormat:@"/index.html"]];
>
> [[NSURLCache sharedURLCache] removeAllCachedResponses];
>
> [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL
> fileURLWithPath:reloadTarget]]];
>
>
> On Thu, Apr 25, 2013 at 3:57 PM, Shazron <sh...@gmail.com> wrote:
>
> > We set up a cache in AppDelegate.m[1], and I suppose you could hook into
> > CDVPageDidLoadNotification[2] in your own plugin, then clear the
> cache[3]:
> >
> > e.g.
> > [[NSURLCache sharedURLCache] removeAllCachedResponses]
> >
> >
> > [1]
> >
> >
> https://github.com/apache/cordova-ios/blob/c6e71147386d4ad94b07428952d1aae0a9cbf3f5/bin/templates/project/__TESTING__/Classes/AppDelegate.m#L46-L53
> > [2]
> >
> >
> https://github.com/apache/cordova-ios/blob/9facafb4f96c7f81097a9424505398821589ba54/CordovaLib/Classes/CDVPlugin.h#L26
> > [3]
> >
> >
> https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSURLCache_Class/Reference/Reference.html
> >
> >
> >
> > On Thu, Apr 25, 2013 at 11:46 AM, David Lewis <le...@gmail.com> wrote:
> >
> > > I've got a Cordova 2.6 app on iOS 6 that uses ~/Documents as the
> webroot
> > > for updating purposes. Because of the JS load, when the index.html is
> > > reloaded after it is changed (delete and copy from the update), not
> > > everything is loaded again.
> > >
> > > I don't have the details for it, but there is a display parameter that
> > > should change when the new page is loaded. So far, the only way to
> > achieve
> > > this is through resetting the entire app through user intervention.
> > >
> > > I've seen reference to iOS Safari caching POST, which we are certainly
> > > using, but the data in question is generated from local files.
> > >
> > > Is there a way to reset the cache when the index.html is reloaded?
> > >
> > > Thanks,
> > >
> > > David
> > >
> >
>
Re: Question about caching
Posted by David Lewis <le...@gmail.com>.
I call removeAllCachedResponses before loading the new index.html.
The page does appear to reload but we have files that load files and files
that get injected into divs. The updated files are not injected. The old
cached version is used instead.
NSString *reloadTarget = [docDir stringByAppendingPathComponent:[
NSString stringWithFormat:@"/index.html"]];
[[NSURLCache sharedURLCache] removeAllCachedResponses];
[self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL
fileURLWithPath:reloadTarget]]];
On Thu, Apr 25, 2013 at 3:57 PM, Shazron <sh...@gmail.com> wrote:
> We set up a cache in AppDelegate.m[1], and I suppose you could hook into
> CDVPageDidLoadNotification[2] in your own plugin, then clear the cache[3]:
>
> e.g.
> [[NSURLCache sharedURLCache] removeAllCachedResponses]
>
>
> [1]
>
> https://github.com/apache/cordova-ios/blob/c6e71147386d4ad94b07428952d1aae0a9cbf3f5/bin/templates/project/__TESTING__/Classes/AppDelegate.m#L46-L53
> [2]
>
> https://github.com/apache/cordova-ios/blob/9facafb4f96c7f81097a9424505398821589ba54/CordovaLib/Classes/CDVPlugin.h#L26
> [3]
>
> https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSURLCache_Class/Reference/Reference.html
>
>
>
> On Thu, Apr 25, 2013 at 11:46 AM, David Lewis <le...@gmail.com> wrote:
>
> > I've got a Cordova 2.6 app on iOS 6 that uses ~/Documents as the webroot
> > for updating purposes. Because of the JS load, when the index.html is
> > reloaded after it is changed (delete and copy from the update), not
> > everything is loaded again.
> >
> > I don't have the details for it, but there is a display parameter that
> > should change when the new page is loaded. So far, the only way to
> achieve
> > this is through resetting the entire app through user intervention.
> >
> > I've seen reference to iOS Safari caching POST, which we are certainly
> > using, but the data in question is generated from local files.
> >
> > Is there a way to reset the cache when the index.html is reloaded?
> >
> > Thanks,
> >
> > David
> >
>
Re: Question about caching
Posted by Shazron <sh...@gmail.com>.
We set up a cache in AppDelegate.m[1], and I suppose you could hook into
CDVPageDidLoadNotification[2] in your own plugin, then clear the cache[3]:
e.g.
[[NSURLCache sharedURLCache] removeAllCachedResponses]
[1]
https://github.com/apache/cordova-ios/blob/c6e71147386d4ad94b07428952d1aae0a9cbf3f5/bin/templates/project/__TESTING__/Classes/AppDelegate.m#L46-L53
[2]
https://github.com/apache/cordova-ios/blob/9facafb4f96c7f81097a9424505398821589ba54/CordovaLib/Classes/CDVPlugin.h#L26
[3]
https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSURLCache_Class/Reference/Reference.html
On Thu, Apr 25, 2013 at 11:46 AM, David Lewis <le...@gmail.com> wrote:
> I've got a Cordova 2.6 app on iOS 6 that uses ~/Documents as the webroot
> for updating purposes. Because of the JS load, when the index.html is
> reloaded after it is changed (delete and copy from the update), not
> everything is loaded again.
>
> I don't have the details for it, but there is a display parameter that
> should change when the new page is loaded. So far, the only way to achieve
> this is through resetting the entire app through user intervention.
>
> I've seen reference to iOS Safari caching POST, which we are certainly
> using, but the data in question is generated from local files.
>
> Is there a way to reset the cache when the index.html is reloaded?
>
> Thanks,
>
> David
>