This is caused by incompatible browser interfaces. At present, browsers on the market generally use three cores, namely Firefox core IE core and Google core. Other browsers are based on these kernels. Of course, the latest Microsoft browser Edge is a brand new kernel. The author who developed this webpage may use Firefox to debug when debugging. As a result, some plug-ins may not be compatible with IE, and this input cannot be done. In this case, try to change several browsers to solve it.