fix(bex) sender.tab is undefined with devtools app (#5467)
fix(bex) sender.tab is undefined with devtools app (#5467)


fsgiudice/quasar,pdanpdan/quasar,fsgiudice/quasar,rstoenescu/quasar-framework,quasarframework/quasar,quasarframework/quasar,rstoenescu/quasar-framework,rstoenescu/quasar-framework,pdanpdan/quasar,pdanpdan/quasar,fsgiudice/quasar,pdanpdan/quasar,quasarframework/quasar,quasarframework/quasar