javascript - Failed to execute 'getStartPositionOfChar' on 'SVGTextContentElement' -


what reason of following exception?

domexception: failed execute 'getstartpositionofchar' on 'svgtextcontentelement': charnum provided (0) greater or equal maximum bound (0).

actually, i'm trying integrate https://github.com/nlplab/brat own created backend. uses svg jquery.svg.min.js , jquery.svgdom.min.js. stuck @ exception. exeption raised on text element of svg while making call 

text.getstartpositionofchar(firstchar).x;

where text 

<text x="0" y="0">some text</text>

and firstchar=0.

i believe bug fixed in master branch, not on packaged version 1.3. try replace brat 1 directly cloned github (git clone https://github.com/nlplab/brat.git).


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