<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/65065>65065</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clangd] --path-mappings doesn't work when the client side path of the mapping is '/' 
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          qscdfg
      </td>
    </tr>
</table>

<pre>
    run clangd with the --path-mappings:
`clangd --path-mappings=/=/mnt` and then open the file /data/a.cpp
clangd will not use the file /mnt/data/a.cpp on the server side.

it will still use /data/a.cpp on the server side and then casue file not found.
</pre>
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