Cannot read property 'style' of null

[williamdes]

Describe the bug

{
    "pma_version": "5.1.1-dev",
    "browser_name": "CHROME",
    "browser_version": "90.0.4430.93",
    "user_os": "Linux",
    "server_software": "nginx/1.18.0",
    "user_agent_string": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36",
    "locale": "fr",
    "configuration_storage": "disabled",
    "php_version": "7.4.15",
    "script_name": "index.php",
    "exception_type": "js",
    "exception": {
        "mode": "stack",
        "name": "TypeError",
        "message": "Cannot read property 'style' of null",
        "stack": [
            {
                "func": "?",
                "line": "164",
                "column": "13",
                "context": [
                    "    DesignerMove.markSaved();",
                    "",
                    "    for (var t = 0; t < tblCords.length; t++) {",
                    "      var tbId = db + '.' + tblCords[t].tableName;",
                    "      var table = document.getElementById(tbId);",
                    "      table.style.top = tblCords[t].y + 'px';",
                    "      table.style.left = tblCords[t].x + 'px';",
                    "      var checkbox = document.getElementById('check_vis_' + tbId);",
                    "      checkbox.checked = true;",
                    "      DesignerMove.visibleTab(checkbox, checkbox.value);",
                    "    }"
                ],
                "uri": "js/dist/designer/page.js?v=5.1.1-dev",
                "scriptname": "js/dist/designer/page.js"
            },
            {
                "func": "?",
                "line": "186",
                "column": "13",
                "context": [
                    "      DesignerOfflineDB.loadObject('table_coords', page.tblCords[i], functi//...",
                    "        tblCords.push(tblCord);",
                    "",
                    "        if (tblCords.length === count) {",
                    "          if (typeof callback !== 'undefined') {",
                    "            callback(page, tblCords);",
                    "          }",
                    "        }",
                    "      });",
                    "    }",
                    "  });"
                ],
                "uri": "js/dist/designer/page.js?v=5.1.1-dev",
                "scriptname": "js/dist/designer/page.js"
            },
            {
                "func": "IDBRequest.cursorRequest.onsuccess",
                "line": "58",
                "column": "7",
                "context": [
                    "    var transaction = db.transaction([table], 'readwrite');",
                    "    var objStore = transaction.objectStore(table);",
                    "    var cursorRequest = objStore.get(parseInt(id));",
                    "",
                    "    cursorRequest.onsuccess = function (e) {",
                    "      callback(e.target.result);",
                    "    };",
                    "",
                    "    cursorRequest.onerror = designerDB.onerror;",
                    "  };",
                    ""
                ],
                "uri": "js/dist/designer/database.js?v=5.1.1-dev",
                "scriptname": "js/dist/designer/database.js"
            }
        ],
        "uri": "index.php?route=%2Fdatabase%2Fdesigner"
    }
}

To Reproduce

Steps to reproduce the behavior:

1. Go to Designer

Expected behavior

No error

Server configuration

• phpMyAdmin version: 5.1

[williamdes]

I think this is because I load the page that was saved but I renamed a table in the mean time

[shucon]

I think this is because I load the page that was saved but I renamed a table in the mean time

I was able to reproduce this issue by saving a page and then renaming a table.