Ensure there's data to build path.
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@ -354,7 +354,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
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var glyphs = font.charsToGlyphs(chars);
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var isAddToPathSet = !!(this.state.textRenderingMode &
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TextRenderingMode.ADD_TO_PATH_FLAG);
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if (isAddToPathSet || PDFJS.disableFontFace) {
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if (font.data && (isAddToPathSet || PDFJS.disableFontFace)) {
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for (var i = 0; i < glyphs.length; i++) {
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if (glyphs[i] === null) {
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continue;
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