Search breaks in react-native release build but not in debug build

I’ve been going through the issues like crazy to find something similar to what is happening to me. The closest one I’ve found is #279 and the possible solutions haven’t worked. My app breaks when searching in the release build for some terms, but not when it’s on debug mode. I’ve also gone through the react-native issues and have tried to fix the minify/uglify bugs but haven’t been able to solve the problem I’m having. I get TypeError: undefined is not an object (evaluating 'p._index') when I call search with ‘maine* maine v* v’ for example. The weird thing is that in debug mode it works as expected, but in the release build it crashes.

Here’s my code for building the index, and my code for searching:

export default {
  createSearchIndex: function (items) {
    return lunr(function() {
      this.ref('id');
      this.field('title');
      this.field('description');

      items
        .forEach(item => {
          // Adds description index field to the outer object so videos are also
          // searchable by description as per requirements.
          const data = item && item.data || {};
          const description = data.description && data.description.toLowerCase() || '';

          const searchableItem = {
            ...item,
            description,
          }

          this.add(searchableItem);
        });
    });
  },
  search: (searchText, searchIndex, videoDocs) => {
    const query = searchText
      .toLowerCase()
      .split(/\s+/)
      // Add asterisk to partially match terms: ALA* -> ALASKA, ALAMO, etc...
      // this query will give a high positive boost to exact matches, and
      // a lower one to partially matched terms.
      .map(term => term && `${term}^100 ${term}*^10` || '')
      .join(' ')
      .trim();

    const searchResults = query ?
      searchIndex.search(query).map(result => videoDocs[result.ref]) :
      [];

    return searchResults;
  }
};

[yaronlevi]

Any updates on using lunr + React Native?

[lucaong]

I am quite confident that this issue with React Native was fixed by this PR:

https://github.com/olivernn/lunr.js/pull/361

The PR originally targeted a bug in Safari, and React Native on iOS uses the same JS engine as Safari.