Fix: Maximum call stack exceeded with large data #140
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jim-lake
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Oct 15, 2025
Note: The reference Brotli file doesn't work because it is too large. It decompresses to an extremely large size (1Gb+) Closes ironSource#140 Closes ironSource#125 (Likely?) A new brotli sample file was generated using python code seen below. ## What Changed? - Moved the esbuild work to mjs. This was required to get some of the builds working correctly - Fixed bug in the esbuild when it tried to build the browser code in parallel with the test code causing a race condition - Split the compression.ts file into a browser version and a node version - Swapped over to use `esbuild-plugin-wat` which worked better than the copy-pasted one from esbuild - Integrated the brotli-wasm correctly for browser, but used brotli natively in nodejs ## Testing! - There is a nodejs test for the node version - There is a browser test for it as well: 1. `npm i` 2. `npm run build:browser` 3. `npx serve .` 4. `open http://localhost:3000/test/browser/` in your preferred browser - The example server also has it: - cd examples/server/ - npm i - node app.js - cd ../../ && npm run serve - `open http://localhost:3000/` in your preferred browser ### Brotli Sample File generation script ```python import pandas as pd import pyarrow as pa import pyarrow.parquet as pq # Create a small sample DataFrame data = { 'id': [1, 2, 3, 4, 5], 'name': ['Alice', 'Bob', 'Charlie', 'David', 'Eve'], 'age': [25, 30, 35, 40, 45] } df = pd.DataFrame(data) # Convert DataFrame to PyArrow Table table = pa.Table.from_pandas(df) # Define output Parquet file path output_file = "sample_brotli_compressed.parquet" # Write to Parquet file with Brotli compression pq.write_table(table, output_file, compression='BROTLI') print(f"File {output_file} created successfully!") ``
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When using consistently large values for a single column, the array,push(...) will cause a Maximum call stack exceeded error. This also applies to Array.prototype.push.apply. This change also increases the speed of the reader.