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    <title>topic content.dropboxapi.com endpoints give &amp;quot;Certificate has been revoked&amp;quot; error from time to time in Dropbox API Support &amp; Feedback</title>
    <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/content-dropboxapi-com-endpoints-give-quot-Certificate-has-been/m-p/176227#M7018</link>
    <description>&lt;P&gt;Hi,&lt;/P&gt;
&lt;P&gt;I am testing my web application after migrating to&amp;nbsp;the new API 2.0 (REST), and I notice that from time to time calls to&amp;nbsp;content.dropboxapi.com endpoints give error with the certificate.&lt;/P&gt;
&lt;P&gt;This happens both for POST requests and&amp;nbsp;for pre-flight requests.&lt;/P&gt;
&lt;P&gt;Example of URL:&lt;/P&gt;
&lt;P&gt;&lt;A href="https://content.dropboxapi.com/2/files/download?arg=%7B%22path%22:%22/aaa.txt%22%7D" rel="nofollow noreferrer" target="_blank"&gt;https://content.dropboxapi.com/2/files/download?arg={"path":"/aaa.txt"}&lt;/A&gt;&lt;/P&gt;
&lt;P&gt;I don't see&amp;nbsp;these&amp;nbsp;errors in Chrome, but in Firefox (47) and IE11 they are quite regular.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;When it happens, the ajax call returns 0 as a status code.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;In Firefox, if I dig into network log, I see the following error:&lt;/P&gt;
&lt;P&gt;"An error occurred during a connection to content.dropboxapi.com.&lt;/P&gt;
&lt;P&gt;Peer's Certificate has been revoked.&lt;/P&gt;
&lt;P&gt;Error code: SEC_ERROR_REVOKED_CERTIFICATE"&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;In IE, the error is quite in your face, it actually shows the popup with the following message:&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;"Security Alert&lt;BR /&gt;---------------------------&lt;BR /&gt;The security certificate for this site has been revoked.&lt;/P&gt;
&lt;P&gt;This site should not be trusted."&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Which is quite annoying since users might think IE is complaining about my site.&amp;nbsp;I could implement re-trying logic, but in case of IE, this popup is not something I would like my users to see.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Hoping for some advice,&lt;/P&gt;
&lt;P&gt;Thanks.&lt;/P&gt;</description>
    <pubDate>Wed, 29 May 2019 09:31:45 GMT</pubDate>
    <dc:creator>Artem K.</dc:creator>
    <dc:date>2019-05-29T09:31:45Z</dc:date>
    <item>
      <title>content.dropboxapi.com endpoints give "Certificate has been revoked" error from time to time</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/content-dropboxapi-com-endpoints-give-quot-Certificate-has-been/m-p/176227#M7018</link>
      <description>&lt;P&gt;Hi,&lt;/P&gt;
&lt;P&gt;I am testing my web application after migrating to&amp;nbsp;the new API 2.0 (REST), and I notice that from time to time calls to&amp;nbsp;content.dropboxapi.com endpoints give error with the certificate.&lt;/P&gt;
&lt;P&gt;This happens both for POST requests and&amp;nbsp;for pre-flight requests.&lt;/P&gt;
&lt;P&gt;Example of URL:&lt;/P&gt;
&lt;P&gt;&lt;A href="https://content.dropboxapi.com/2/files/download?arg=%7B%22path%22:%22/aaa.txt%22%7D" rel="nofollow noreferrer" target="_blank"&gt;https://content.dropboxapi.com/2/files/download?arg={"path":"/aaa.txt"}&lt;/A&gt;&lt;/P&gt;
&lt;P&gt;I don't see&amp;nbsp;these&amp;nbsp;errors in Chrome, but in Firefox (47) and IE11 they are quite regular.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;When it happens, the ajax call returns 0 as a status code.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;In Firefox, if I dig into network log, I see the following error:&lt;/P&gt;
&lt;P&gt;"An error occurred during a connection to content.dropboxapi.com.&lt;/P&gt;
&lt;P&gt;Peer's Certificate has been revoked.&lt;/P&gt;
&lt;P&gt;Error code: SEC_ERROR_REVOKED_CERTIFICATE"&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;In IE, the error is quite in your face, it actually shows the popup with the following message:&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;"Security Alert&lt;BR /&gt;---------------------------&lt;BR /&gt;The security certificate for this site has been revoked.&lt;/P&gt;
&lt;P&gt;This site should not be trusted."&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Which is quite annoying since users might think IE is complaining about my site.&amp;nbsp;I could implement re-trying logic, but in case of IE, this popup is not something I would like my users to see.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Hoping for some advice,&lt;/P&gt;
&lt;P&gt;Thanks.&lt;/P&gt;</description>
      <pubDate>Wed, 29 May 2019 09:31:45 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/content-dropboxapi-com-endpoints-give-quot-Certificate-has-been/m-p/176227#M7018</guid>
      <dc:creator>Artem K.</dc:creator>
      <dc:date>2019-05-29T09:31:45Z</dc:date>
    </item>
    <item>
      <title>Re: content.dropboxapi.com endpoints give "Certificate has been revoked" error from time to time</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/content-dropboxapi-com-endpoints-give-quot-Certificate-has-been/m-p/176228#M7019</link>
      <description>&lt;P&gt;Hi Artem, I can't seem to reproduce this issue with Firefox 47 or IE 11. Also, the&amp;nbsp;Dropbox API server certificates aren't revoked to my knowledge.&lt;/P&gt;
&lt;P&gt;Might there be something on your network connection intermittently interfering with your connections to the&amp;nbsp;Dropbox API servers? E.g., firewall, proxy, anti-virus, etc.?&lt;/P&gt;</description>
      <pubDate>Wed, 13 Jul 2016 20:34:34 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/content-dropboxapi-com-endpoints-give-quot-Certificate-has-been/m-p/176228#M7019</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2016-07-13T20:34:34Z</dc:date>
    </item>
    <item>
      <title>Re: content.dropboxapi.com endpoints give "Certificate has been revoked" error from time to time</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/content-dropboxapi-com-endpoints-give-quot-Certificate-has-been/m-p/176229#M7020</link>
      <description>&lt;P&gt;Hi Gregory, thank you for looking into this.&lt;/P&gt;
&lt;P&gt;Your answer made me realize I was actually running my tests with fiddler running. I stopped fiddler and now all my tests pass without any issues. Sorry, my bad.&lt;/P&gt;</description>
      <pubDate>Wed, 13 Jul 2016 22:29:43 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/content-dropboxapi-com-endpoints-give-quot-Certificate-has-been/m-p/176229#M7020</guid>
      <dc:creator>Artem K.</dc:creator>
      <dc:date>2016-07-13T22:29:43Z</dc:date>
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