Angular 角度2/4查询字符串/参数自动转换为小写

我有一个内置于Angular 4的应用程序。 当我传递查询字符串时，它会自动将大写字符转换为小写字符

以下是原始查询字符串：

http://localhost:5001/create-password?resettoken=CfDJ8KiDnr7aa31ChHccXvdxPQtBOyrGdnLXfxHt5$2FSTLoPFZfXUz9VDLBwgEp2sseJTWGFcKtQ4u$2B8VvOk1UZjve3$2FqfV$2FAnwBXo$2BKHzAGsvd2juCemDVwzebGyT$2F77YK0wHvCBh0eg5zb1rr4udy$2Fy5Cr7aP3FaVFsizuB1tqFnqFTmCluv$2FpehjmdlDXxgv4BOD2xGShFGECx99F20nDpE4jS3bYgFnJnM94kZMPQO1HB2UrBJJU4p1Fb7991v$2Bi0nQ$3D$3D&username=nishantthakkar&type=recover

http://localhost:5001/create-password?resettoken=cfdj8kidnr7aa31chhccxvdxpqtboyrgdnlxfxht5$2fstlopfzfxuz9vdlbwgep2ssejtwgfcktq4u$2b8vvok1uzjve3$2fqfv$2fanwbxo$2bkhzagsvd2jucemdvwzebgyt$2f77yk0whvcbh0eg5zb1rr4udy$2fy5cr7ap3favfsizub1tqfnqftmcluv$2fpehjmdldxxgv4bod2xgshfgecx99f20ndpe4js3bygfnjnm94kzmpqo1hb2urbjju4p1fb7991v$2bi0nq$3d$3d&username=nishantthakkar&type=recover

以下是自动转换的查询字符串：

http://localhost:5001/create-password?resettoken=CfDJ8KiDnr7aa31ChHccXvdxPQtBOyrGdnLXfxHt5$2FSTLoPFZfXUz9VDLBwgEp2sseJTWGFcKtQ4u$2B8VvOk1UZjve3$2FqfV$2FAnwBXo$2BKHzAGsvd2juCemDVwzebGyT$2F77YK0wHvCBh0eg5zb1rr4udy$2Fy5Cr7aP3FaVFsizuB1tqFnqFTmCluv$2FpehjmdlDXxgv4BOD2xGShFGECx99F20nDpE4jS3bYgFnJnM94kZMPQO1HB2UrBJJU4p1Fb7991v$2Bi0nQ$3D$3D&username=nishantthakkar&type=recover

http://localhost:5001/create-password?resettoken=cfdj8kidnr7aa31chhccxvdxpqtboyrgdnlxfxht5$2fstlopfzfxuz9vdlbwgep2ssejtwgfcktq4u$2b8vvok1uzjve3$2fqfv$2fanwbxo$2bkhzagsvd2jucemdvwzebgyt$2f77yk0whvcbh0eg5zb1rr4udy$2fy5cr7ap3favfsizub1tqfnqftmcluv$2fpehjmdldxxgv4bod2xgshfgecx99f20ndpe4js3bygfnjnm94kzmpqo1hb2urbjju4p1fb7991v$2bi0nq$3d$3d&username=nishantthakkar&type=recover

有人能告诉我为什么会这样吗