use regex that is supported by all browsers (#18811)
use regex that is supported by all browsers (#18811)


DickJC123/mxnet,tlby/mxnet,leezu/mxnet,szha/mxnet,tlby/mxnet,szha/mxnet,yajiedesign/mxnet,sxjscience/mxnet,szha/mxnet,DickJC123/mxnet,sxjscience/mxnet,tlby/mxnet,szha/mxnet,leezu/mxnet,apache/incubator-mxnet,sxjscience/mxnet,leezu/mxnet,apache/incubator-mxnet,szha/mxnet,leezu/mxnet,sxjscience/mxnet,leezu/mxnet,leezu/mxnet,yajiedesign/mxnet,szha/mxnet,yajiedesign/mxnet,leezu/mxnet,sxjscience/mxnet,yajiedesign/mxnet,tlby/mxnet,yajiedesign/mxnet,sxjscience/mxnet,yajiedesign/mxnet,yajiedesign/mxnet,leezu/mxnet,yajiedesign/mxnet,tlby/mxnet,tlby/mxnet,szha/mxnet,yajiedesign/mxnet,tlby/mxnet,szha/mxnet,tlby/mxnet,DickJC123/mxnet,apache/incubator-mxnet,leezu/mxnet,szha/mxnet,apache/incubator-mxnet,sxjscience/mxnet,sxjscience/mxnet,sxjscience/mxnet,DickJC123/mxnet,tlby/mxnet,tlby/mxnet