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POXMLHttpRequest cannot load https://s3.amazonaws.com/. Origin is not allowed by Access-Control-Allow-Origin
 

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  1. POXMLHttpRequest cannot load https://s3.amazonaws.com/. Origin is not allowed by Access-Control-Allow-Origin
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    <p>first time i am using AWS and s3 i have to integrate it with salesforce for uploading large files when i try to upload a file it is giving me error</p> <pre><code>OPTIONS https://s3.amazonaws.com/ritesh 403 (Forbidden) resumable.js:344 XMLHttpRequest cannot load https://s3.amazonaws.com/ritesh. Origin https://c.ap1.visual.force.com is not allowed by Access-Control-Allow-Origin. </code></pre> <p>i am using <a href="https://github.com/23/resumable.js" rel="nofollow">resumable.js(a javascript library for sending big files in chunk)</a> as you can see i am sending file from url <a href="https://c.ap1.visual.force.com" rel="nofollow">https://c.ap1.visual.force.com</a> then i tried to send it</p> <p>the code segment from where i am sending file is</p> <pre><code>var r = new Resumable({ target:'https://s3.amazonaws.com/ritesh', chunkSize:1*1024*1024, simultaneousUploads:4, testChunks:false, throttleProgressCallbacks:1, query:{ 'key': 'Hello10' ,'AWSAccessKeyId': '*********' ,'policy':'{!$RemoteAction.S3FormController.getPolicy1}' ,'signature':'{!$RemoteAction.S3FormController.getSignedPolicy1}', 'acl': '{!AWS_S3_Object__c.Access__c}','success_action_status':'201' , 'success_action_redirect':'https://'+'{!$RemoteAction.S3FormController.getServerURL1}'+'/'+'{!AWS_S3_Object__c.id}' ,'Content-Type' :'application/zip' } }); </code></pre> <p>because i am using an existing JS library thats why its looking little weired.this code means i am sending a post request to <a href="https://s3.amazonaws.com/ritesh" rel="nofollow">https://s3.amazonaws.com/ritesh</a> ritesh is my bucket name setting other post parameters like key ,AWSAccessKeyId,policy,signature,acl,success_action_status etc all parameters are praobably correct why i am getting this error.my Cors Configuration is</p> <pre><code>&lt;CORSConfiguration&gt; &lt;CORSRule&gt; &lt;AllowedOrigin&gt;https://c.ap1.visual.force.com/&lt;/AllowedOrigin&gt; &lt;AllowedMethod&gt;PUT&lt;/AllowedMethod&gt; &lt;AllowedMethod&gt;POST&lt;/AllowedMethod&gt; &lt;AllowedMethod&gt;DELETE&lt;/AllowedMethod&gt; &lt;AllowedHeader&gt;*&lt;/AllowedHeader&gt; &lt;/CORSRule&gt; &lt;CORSRule&gt; &lt;AllowedOrigin&gt;*&lt;/AllowedOrigin&gt; &lt;AllowedMethod&gt;GET&lt;/AllowedMethod&gt; &lt;/CORSRule&gt; &lt;/CORSConfiguration&gt; </code></pre> <p>i am sending only parameters not any header should i have to send additional headers which headers please menton!!please please help how to remove this error</p>
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    1. USArtjom B.
    1. USRitesh Mehandiratta
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      1. POXMLHttpRequest cannot load https://s3.amazonaws.com/. Origin is not allowed by Access-Control-Allow-Origin
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      1. VTUpMod
    1. COIf an external system needs authentication then you need to have authorization in header...One thing i would suggest is to look at amazon api developer guide and find out how you Will use header
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      1. POXMLHttpRequest cannot load https://s3.amazonaws.com/. Origin is not allowed by Access-Control-Allow-Origin
      1. USMohith Shrivastava
 

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