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  • P@010 10 posts 52 karma points
    Apr 23, 2015 @ 13:29
    P@010
    1

    adding Cache-Control header

    Hi

    Best practice dictates that static assets such as images should have long expiring cache headers so the client only downloads them once. Typically, when uploading to blog storage, you would specify a Cache-Control of many months or even years but the Azure Blob Storage Provider appears not to set this header. This means much slower sites for our users and much more bandwidth costs for us.

    Do you have any thoughts or solutions as to how we can resolve this issue?

    Thanks

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  • Dirk Seefeld 126 posts 665 karma points
    Apr 23, 2015 @ 19:57
    Dirk Seefeld
    0

    Hi,

    uses Etags for cache control. As far as I can see this works fine.
    I have just tested with current versions of IE, Chrome and Firefox on Windows 7.
    Data will be load only on first request. Depending on your browser and its configuration the next request to an unchanged blob item will return http status 304 and no content data will be send.

    Kind regads
    Dirk 

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  • Dirk Seefeld 126 posts 665 karma points
    Apr 23, 2015 @ 22:01
    Dirk Seefeld
    0

    After further research I think I got your point.
    I will add an optional configuration which allows you to set cache-control by file type.
    Currently I cannot see how to set this for each media item during upload.

    Dirk 

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  • Dirk Seefeld 126 posts 665 karma points
    Apr 24, 2015 @ 00:07
    Dirk Seefeld
    0

    Upgrade to version 1.0.10.1 and configure your desired cache-control. Please read documentation for details.

    Dirk

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  • P@010 10 posts 52 karma points
    Apr 24, 2015 @ 11:08
    P@010
    0

    Thanks you for adding this so quickly.

    Unfortunately after upgrading I am now getting 500 errors in the media section of umbraco:

    Here is an example of one of the calls:

    http://localhost:61070/umbraco/backoffice/UmbracoApi/Images/GetBigThumbnail?originalImagePath={blog storage image url}

    <Error>
    <Message>An error has occurred.</Message>
    <ExceptionMessage>
    Could not find constructor for type 'idseefeld.de.UmbracoAzure.AzureBlobFileSystem, idseefeld.de.UmbracoAzure' which accepts 5 parameters
    </ExceptionMessage>
    <ExceptionType>System.InvalidOperationException</ExceptionType>
    <StackTrace>
    at Umbraco.Core.IO.FileSystemProviderManager.<GetUnderlyingFileSystemProvider>b__1(String s) at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory) at Umbraco.Core.IO.FileSystemProviderManager.GetUnderlyingFileSystemProvider(String alias) at Umbraco.Core.IO.FileSystemProviderManager.GetFileSystemProvider[TProviderTypeFilter]() at Umbraco.Web.Editors.ImagesController.GetResized(String imagePath, Int32 width, String suffix) at Umbraco.Web.Editors.ImagesController.GetBigThumbnail(String originalImagePath) at lambda_method(Closure , Object , Object[] ) at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters) at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments) at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken) --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__2.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()
    </StackTrace>
    </Error>
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  • P@010 10 posts 52 karma points
    Apr 24, 2015 @ 11:20
    P@010
    1

    Update: I am using the NuGet package and it looks as though the 1.10 NuGet package is still using the 1.0.9 dll?

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  • Dirk Seefeld 126 posts 665 karma points
    Apr 24, 2015 @ 11:55
    Dirk Seefeld
    100

    Hm, you are right the nuget package is not updated properly. Please use the package form our. You don't have to install it just extract the idseefeld.de.UmbracoAzure.dll and put it into the bin folder.

    Thank you for your report!

    Dirk

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  • Dirk Seefeld 126 posts 665 karma points
    Apr 24, 2015 @ 17:34
    Dirk Seefeld
    0

    meanwhile the nuget package v1.0.10.2 should be fine!

    Dirk

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  • Flavio Spezi 129 posts 315 karma points
    Apr 06, 2016 @ 16:30
    Flavio Spezi
    0

    First: little note

    I apply now cacheControl parameter in "FileSystemProviders.config". I receive an error while try to upload file:

    Could not find constructor for type 'idseefeld.de.UmbracoAzure.AzureBlobFileSystem, idseefeld.de.UmbracoAzure' which accepts 4 parameters

    Then I add mimetypes parameter: it solve the issue.

    Second: a question

    I was add this row in "config" file:

    <add key="cacheControl" value="*|public, max-age=31536000;js|no-cache" />

    Then I try to upload a new file, to download it and check "cache-control" value: Chrome say that it is max-age=0.
    There are an issue? I look that x-ms-version is "2009-09-19". Am I using a oldest Blob Storage version?

    Update

    I changed version to "2015-02-21" but I receive the same result.

    Update 2

    I apologize.
    In its control of Chrome if the resource was marked with the proper value for "cache-control" I checked on the "Request Headers" instead of "Response Headers".
    I confirm that "Azure Blob Storage Provider" works correctly.

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  • Jez Reel R. Maghuyop 20 posts 62 karma points
    Aug 17, 2016 @ 15:09
    Jez Reel R. Maghuyop
    0

    Hi, I'm experiencing the same problem as you.. what do you mean when you say

    Then I add mimetypes parameter: it solve the issue.

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  • Flavio Spezi 129 posts 315 karma points
    Aug 17, 2016 @ 15:58
    Flavio Spezi
    0

    AzureBlobFileSystem provider requires 5 parameters: containerName, rootUrl, connectionString, mimetypes, cacheControl.

    This is the official sample:

    <Provider alias="media"
          type="idseefeld.de.UmbracoAzure.AzureBlobFileSystem, idseefeld.de.UmbracoAzure">
    <Parameters>
        <add key="containerName" value="media" />
        <add key="rootUrl" value="http://[myAccountName].blob.core.windows.net/" />
        <add key="connectionString" value="DefaultEndpointsProtocol=https;AccountName=[myAccountName];AccountKey=[myAccountKey]"/>
        <add key="mimetypes" value="" />
        <add key="cacheControl" value="*|public, max-age=31536000;js|no-cache" />
    </Parameters>
</Provider>

    You can simply add mimetypes parameter quit empty value like the sample above.

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  • Dirk Seefeld 126 posts 665 karma points
    Aug 17, 2016 @ 15:58
    Dirk Seefeld
    0

    Hi, please check out documentation. On page 3 you see the complete configuration. There you can also see where to put:

    <add key="mimetypes" value="" />

    Cheers!

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