make some changes for html5 (#674)

zhaomingwork

2023-06-28 488781cf10e63fc62ad618a764e7aa7d390acfcb

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beam_size: 5
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.5
lm_weight: 0.7