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    <title>topic Re: Error (4xx) We can't find the page you're looking for in Dropbox API Support &amp; Feedback</title>
    <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Error-4xx-We-can-t-find-the-page-you-re-looking-for/m-p/268865#M15846</link>
    <description>API calls can fail with a generic HTML page like this if the server doesn't recognize the HTTP request as an API call. Is the sample HTTP request you shared exactly what's actually being sent? If so, it's not valid because it's missing the HTTP version (i.e., "HTTP/1.1") at the end of the first line.&lt;BR /&gt;&lt;BR /&gt;Also, in the sample HTTP request you shared, you're sending an invalid "Content-Type" for this kind of API call. Since /2/files/download doesn't expect anything in the request body, the "Content-Type" header should be omitted anyway. Please try removing that header and try again. (Or, if you can't remove it entirely, please set the value to be an empty string.)</description>
    <pubDate>Fri, 16 Mar 2018 14:38:30 GMT</pubDate>
    <dc:creator>Greg-DB</dc:creator>
    <dc:date>2018-03-16T14:38:30Z</dc:date>
    <item>
      <title>Error (4xx) We can't find the page you're looking for</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Error-4xx-We-can-t-find-the-page-you-re-looking-for/m-p/268855#M15845</link>
      <description>&lt;P&gt;Hello !&lt;/P&gt;&lt;P&gt;I am facing an issue while using DropBoxAPIs.&amp;nbsp;&lt;/P&gt;&lt;P&gt;I am trying to download a file from my drop box using AT commands through GSM module.However, it is showing error 404 page not found.&lt;/P&gt;&lt;P&gt;Below Call is successfully executed through Postan Utility then to use with AT commands it is converted to HTTP&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;PRE&gt;curl -X POST https://content.dropboxapi.com/2/files/download \
    --header "Authorization: Bearer &lt;SPAN class="access-token"&gt;&amp;lt;Access Token&amp;gt;&lt;/SPAN&gt;" \
    --header "Dropbox-API-Arg: {\"path\": \"/Homework/math/Prime_Numbers.txt\"}"&lt;/PRE&gt;&lt;P&gt;HTTP code sent on GSM&lt;/P&gt;&lt;P&gt;&lt;STRONG&gt;&lt;EM&gt;POST &lt;A href="https://content.dropboxapi.com/2/files/download" target="_blank"&gt;https://content.dropboxapi.com/2/files/download&lt;/A&gt;&lt;/EM&gt;&lt;/STRONG&gt;&lt;BR /&gt;&lt;STRONG&gt;&lt;EM&gt;Host: content.dropboxapi.com&lt;/EM&gt;&lt;/STRONG&gt;&lt;BR /&gt;&lt;STRONG&gt;&lt;EM&gt;Authorization: Bearer&amp;nbsp;&amp;lt;Access Token&amp;gt;&lt;/EM&gt;&lt;/STRONG&gt;&lt;BR /&gt;&lt;STRONG&gt;&lt;EM&gt;Dropbox-API-Arg: {"path": "/File_Name.txt"}&lt;/EM&gt;&lt;/STRONG&gt;&lt;BR /&gt;&lt;EM&gt;&lt;STRONG&gt;Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW&lt;/STRONG&gt;&amp;nbsp;&lt;/EM&gt;&lt;/P&gt;&lt;P&gt;when above data is sent below is received response which shows error 404:&lt;/P&gt;&lt;P&gt;&amp;lt;!DOCTYPE html&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;html&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;head&amp;gt;&amp;lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8"&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;title&amp;gt;Dropbox - 4xx&amp;lt;/title&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;link href="&lt;A href="https://cfl.dropboxstatic.com/static/css/error.css" target="_blank"&gt;https://cfl.dropboxstatic.com/static/css/error.css&lt;/A&gt;" rel="stylesheet" type="text/css"/&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;link rel="shortcut icon" href="&lt;A target="_blank"&gt;https://cfl.dropboxstatic.com/static/images/favicon.ico"/&amp;gt;&amp;lt;LF&lt;/A&gt;&amp;gt;&lt;BR /&gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;/head&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;body&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;div class="figure"&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;img src="&lt;A href="https://cfl.dropboxstatic.com/static/images/illustration_catalog/404_error-illo.png" target="_blank"&gt;https://cfl.dropboxstatic.com/static/images/illustration_catalog/404_error-illo.png&lt;/A&gt;" srcset="&lt;A href="https://cfl.dropboxstatic.com/static/images/illustration_catalog/404_error-illo@2x.png" target="_blank"&gt;https://cfl.dropboxstatic.com/static/images/illustration_catalog/404_error-illo@2x.png&lt;/A&gt; 2x" alt="Error: 4xx"/&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;/div&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;div id="errorbox"&amp;gt;&amp;lt;LF&amp;gt;&lt;BR /&gt;&amp;lt;div class="not-found"&amp;gt; &amp;lt;h1&amp;gt;Error (4xx)&amp;lt;/h1&amp;gt; We can't find the page you're looking for. &amp;lt;div class="not-found--links"&amp;gt; Here are a few links that may be helpful: &amp;lt;ul&amp;gt; &amp;lt;li&amp;gt;&amp;lt;a href="&lt;A target="_blank"&gt;https://www.dropbox.com/home?_tk=fof"&amp;gt;Home&amp;lt;/a&amp;gt;&amp;lt;/li&lt;/A&gt;&amp;gt; &amp;lt;li&amp;gt;&amp;lt;a href="&lt;A target="_blank"&gt;https://www.dropbox.com/help?_tk=fof"&amp;gt;Help&lt;/A&gt; center&amp;lt;/a&amp;gt;&amp;lt;/li&amp;gt; &amp;lt;li&amp;gt;&amp;lt;a href="&lt;A target="_blank"&gt;https://www.dropbox.com/login?_tk=fof"&amp;gt;Sign&lt;/A&gt; in&amp;lt;/a&amp;gt;&amp;lt;/li&amp;gt; &amp;lt;li&amp;gt;&amp;lt;a href="&lt;A target="_blank"&gt;https://www.dropbox.co&amp;lt;CR&amp;gt;&amp;lt;LF&lt;/A&gt;&amp;gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Please help me to sort out the issue.&lt;/P&gt;</description>
      <pubDate>Wed, 29 May 2019 09:14:40 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Error-4xx-We-can-t-find-the-page-you-re-looking-for/m-p/268855#M15845</guid>
      <dc:creator>AdityaTiw</dc:creator>
      <dc:date>2019-05-29T09:14:40Z</dc:date>
    </item>
    <item>
      <title>Re: Error (4xx) We can't find the page you're looking for</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Error-4xx-We-can-t-find-the-page-you-re-looking-for/m-p/268865#M15846</link>
      <description>API calls can fail with a generic HTML page like this if the server doesn't recognize the HTTP request as an API call. Is the sample HTTP request you shared exactly what's actually being sent? If so, it's not valid because it's missing the HTTP version (i.e., "HTTP/1.1") at the end of the first line.&lt;BR /&gt;&lt;BR /&gt;Also, in the sample HTTP request you shared, you're sending an invalid "Content-Type" for this kind of API call. Since /2/files/download doesn't expect anything in the request body, the "Content-Type" header should be omitted anyway. Please try removing that header and try again. (Or, if you can't remove it entirely, please set the value to be an empty string.)</description>
      <pubDate>Fri, 16 Mar 2018 14:38:30 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Error-4xx-We-can-t-find-the-page-you-re-looking-for/m-p/268865#M15846</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2018-03-16T14:38:30Z</dc:date>
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