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    <title>topic Re: 403 error during authentication in Dropbox API Support &amp; Feedback</title>
    <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/403-error-during-authentication/m-p/341863#M19769</link>
    <description>&lt;P&gt;Thanks for the report! I just tried this though and I wasn't able to reproduce the error page you're seeing. I tried using the official&amp;nbsp;Dropbox Objective-C SDK v3.9.4 in the iPhone Xr iOS 12.2 simulator.&lt;/P&gt;
&lt;P&gt;Are you still seeing this issue now? If so, can you let us know:&lt;/P&gt;
&lt;UL&gt;
&lt;LI&gt;What device(s)/simulator(s) and versions of iOS specifically are you seeing this with?&lt;/LI&gt;
&lt;LI&gt;Is there anything on your network connection that may be interfering with any connections to&amp;nbsp;Dropbox or Google (our CAPTCHA provider)?&lt;/LI&gt;
&lt;LI&gt;Are there any JavaScript errors when this occurs? You can retrieve this from a device &lt;A href="https://developer.apple.com/library/archive/documentation/AppleApplications/Conceptual/Safari_Developer_Guide/GettingStarted/GettingStarted.html" target="_self"&gt;using the Safari Web Inspector&lt;/A&gt;.&lt;/LI&gt;
&lt;/UL&gt;
&lt;P&gt;Thanks in advance!&amp;nbsp;&lt;/P&gt;</description>
    <pubDate>Mon, 29 Apr 2019 13:12:53 GMT</pubDate>
    <dc:creator>Greg-DB</dc:creator>
    <dc:date>2019-04-29T13:12:53Z</dc:date>
    <item>
      <title>403 error during authentication</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/403-error-during-authentication/m-p/341670#M19762</link>
      <description>&lt;P&gt;Recently we've started to see 403 errors during sign-in. &amp;nbsp;We start bu callling&amp;nbsp;authorizeFromController:controller:openURL, the user then chooses their account, taps allow, and then before our&amp;nbsp;:application:openURL: is called, a screen comes up saying 403 and to retry. &amp;nbsp;Back up and retry and it works.&lt;/P&gt;&lt;P&gt;It happens 100% on the simulator for us, and on some devices. &amp;nbsp;Believe the lack of the Dropbox app causes it on device.&lt;/P&gt;&lt;P&gt;We are a multi-login app if that makes any difference.&lt;/P&gt;&lt;P&gt;Thanks,&lt;/P&gt;&lt;P&gt;Dylan&lt;/P&gt;</description>
      <pubDate>Wed, 29 May 2019 09:06:51 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/403-error-during-authentication/m-p/341670#M19762</guid>
      <dc:creator>Dylan_Ashe</dc:creator>
      <dc:date>2019-05-29T09:06:51Z</dc:date>
    </item>
    <item>
      <title>Re: 403 error during authentication</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/403-error-during-authentication/m-p/341863#M19769</link>
      <description>&lt;P&gt;Thanks for the report! I just tried this though and I wasn't able to reproduce the error page you're seeing. I tried using the official&amp;nbsp;Dropbox Objective-C SDK v3.9.4 in the iPhone Xr iOS 12.2 simulator.&lt;/P&gt;
&lt;P&gt;Are you still seeing this issue now? If so, can you let us know:&lt;/P&gt;
&lt;UL&gt;
&lt;LI&gt;What device(s)/simulator(s) and versions of iOS specifically are you seeing this with?&lt;/LI&gt;
&lt;LI&gt;Is there anything on your network connection that may be interfering with any connections to&amp;nbsp;Dropbox or Google (our CAPTCHA provider)?&lt;/LI&gt;
&lt;LI&gt;Are there any JavaScript errors when this occurs? You can retrieve this from a device &lt;A href="https://developer.apple.com/library/archive/documentation/AppleApplications/Conceptual/Safari_Developer_Guide/GettingStarted/GettingStarted.html" target="_self"&gt;using the Safari Web Inspector&lt;/A&gt;.&lt;/LI&gt;
&lt;/UL&gt;
&lt;P&gt;Thanks in advance!&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Mon, 29 Apr 2019 13:12:53 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/403-error-during-authentication/m-p/341863#M19769</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2019-04-29T13:12:53Z</dc:date>
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