URIError: URI malformed exception possible (uncaught)

node_modules/pdf3json/lib/pdffont.js:305
        var retVal = encodeURIComponent(str);
                     ^

URIError: URI malformed
    at encodeURIComponent (<anonymous>)
    at cls.flash_encode (/Users/rngadam/coderbunker/prj/EIC/src/eic-cms/eic-cms-cli/node_modules/pdf3json/lib/pdffont.js:305:22)
    at cls.processText (/Users/rngadam/coderbunker/prj/EIC/src/eic-cms/eic-cms-cli/node_modules/pdf3json/lib/pdffont.js:283:25)
    at CanvasRenderingContext2D_.contextPrototype.fillText (/Users/rngadam/coderbunker/prj/EIC/src/eic-cms/eic-cms-cli/node_modules/pdf3json/lib/pdfcanvas.js:204:26)
    at CanvasGraphics_showText [as showText] (eval at <anonymous> (/Users/rngadam/coderbunker/prj/EIC/src/eic-cms/eic-cms-cli/node_modules/pdf3json/lib/pdf.js:60:1), <anonymous>:41251:25)
    at CanvasGraphics_showSpacedText [as showSpacedText] (eval at <anonymous> (/Users/rngadam/coderbunker/prj/EIC/src/eic-cms/eic-cms-cli/node_modules/pdf3json/lib/pdf.js:60:1), <anonymous>:41346:41)
    at CanvasGraphics_executeOperatorList [as executeOperatorList] (eval at <anonymous> (/Users/rngadam/coderbunker/prj/EIC/src/eic-cms/eic-cms-cli/node_modules/pdf3json/lib/pdf.js:60:1), <anonymous>:40560:27)
    at InternalRenderTask__next [as _next] (eval at <anonymous> (/Users/rngadam/coderbunker/prj/EIC/src/eic-cms/eic-cms-cli/node_modules/pdf3json/lib/pdf.js:60:1), <anonymous>:43553:39)
    at InternalRenderTask__continue [as _continue] (eval at <anonymous> (/Users/rngadam/coderbunker/prj/EIC/src/eic-cms/eic-cms-cli/node_modules/pdf3json/lib/pdf.js:60:1), <anonymous>:43545:14)
    at ontimeout (timers.js:365:14)
    at tryOnTimeout (timers.js:237:5)
    at Timer.listOnTimeout (timers.js:207:5)

https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent

Note that an URIError will be thrown if one attempts to encode a surrogate which is not part of a high-low pair

Start in node_modules/pdf3json/lib/pdffont.js at flash_encode around line 305, then follow its callers in processText and pdfcanvas.js. Reproduce the malformed-URI path described in the stack trace and verify that malformed text no longer causes an uncaught URIError during PDF processing.