TypeError is thrown when layout.scripts is null in 0.6.9

TypeError: Cannot read property ‘length’ of undefined

at Object.Layout.getDefaultScriptName
(.../node_modules/opentype.js/src/layout.js:111:43)
at Font.stringToGlyphs
(.../node_modules/opentype.js/src/font.js:155:58)

   /**
     * Returns the best bet for a script name.
     * Returns 'DFLT' if it exists.
     * If not, returns 'latn' if it exists.
     * If neither exist, returns undefined.
     */
    getDefaultScriptName: function() {
        var layout = this.getTable();
        if (!layout) { return; }
        var hasLatn = false;
        for (var i = 0; i < layout.scripts.length; i++) {
            var name = layout.scripts[i].tag;
            if (name === 'DFLT') return name;
            if (name === 'latn') hasLatn = true;
        }
        if (hasLatn) return 'latn';
    },

[Jolg42]

It should be fixed in master (I need to build the dist files) thanks to @fpirsch 👍

[TeisD]

I fixed this in my application by modifying getTable in layout.js like this:

   /**
     * Get or create the Layout table (GSUB, GPOS etc).
     * @param  {boolean} create - Whether to create a new one.
     * @return {Object} The GSUB or GPOS table.
     */
    getTable: function(create) {
        let layout = this.font.tables[this.tableName];
        if ((!layout && create) || layout.scripts === undefined) {
            layout = this.font.tables[this.tableName] = this.createDefaultTable();
        }
        return layout;
    },

It didn’t break anything else so far, but it’s not really a solution as it doesn’t address the underlying problem (which I couldn’t locate).

Anyway, it might be useful as a reference to anyone looking for a quick fix.