How does ie8 implement echarts to export pictures (getDataUrl is not supported)

now the project needs to support ie8 to export echarts charts to excel, but the getDataUrl of echarts under ie8 does not support
canvas"s toDataUrl, nor can it
find a solution under ie8!
search svg,canvasie8 does not support
or what icon plug-in can export pictures under Ie8

Ie8 canvas echarts
Mar.12,2021

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1beae2c-30f7a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1beae2c-30f7a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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